Fix protobuf setup: canonical proto, buf lint, Makefile proto target

- Restored canonical proto from eng-pad-server (PageData, StrokeData
  message names, not Notebook/Page/Stroke)
- Added java_package + java_multiple_files options
- Renamed service to EngPadSyncService (buf STANDARD lint compliance)
- Simplified build.gradle.kts: removed broken custom GenerateProtoTask,
  proto stubs generated via Makefile `make proto` and checked into git
- Generated stubs in app/src/main/java/gen/
- Fixed SyncClient/SyncManager to match canonical proto schema
- Updated dependency versions: protobuf 4.34.1, grpc 1.80.0, grpcKotlin 1.5.0
- Added buf.yaml with STANDARD lint rules and FILE breaking detection

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Makefile

@@ -5,7 +5,11 @@ AVD          ?= DC-1
 PACKAGE      := net.metacircular.engpad
 ACTIVITY     := $(PACKAGE).MainActivity
 
-.PHONY: build test lint clean run devrun apk all
+# Proto generation output directory (checked into git)
+PROTO_GEN    := app/src/main/java/gen
+PROTO_SRC    := app/src/main/proto
+
+.PHONY: build test lint clean run devrun apk proto proto-lint all
 
 # Build everything (compile + test + lint)
 all: lint test build
@@ -31,6 +35,26 @@ apk:
 	./gradlew assembleRelease
 	@echo "APK: app/build/outputs/apk/release/app-release-unsigned.apk"
 
+# Generate Kotlin/gRPC stubs from .proto files
+proto:
+	@rm -rf $(PROTO_GEN)
+	@mkdir -p $(PROTO_GEN)
+	protoc \
+		--proto_path=$(PROTO_SRC) \
+		--proto_path=$$(protoc --print-proto-path 2>/dev/null || echo /usr/local/include) \
+		--java_out=lite:$(PROTO_GEN) \
+		--kotlin_out=lite:$(PROTO_GEN) \
+		--plugin=protoc-gen-grpc=$$(which protoc-gen-grpc-java 2>/dev/null || echo $(HOME)/bin/protoc-gen-grpc-java) \
+		--grpc_out=lite:$(PROTO_GEN) \
+		--plugin=protoc-gen-grpckt=$(HOME)/bin/protoc-gen-grpckt \
+		--grpckt_out=lite:$(PROTO_GEN) \
+		$$(find $(PROTO_SRC) -name '*.proto')
+
+# Lint proto files with buf
+proto-lint:
+	buf lint
+	buf breaking --against '.git#branch=master,subdir=$(PROTO_SRC)'
+
 # Clean build artifacts
 clean:
 	./gradlew clean

app/build.gradle.kts

@@ -1,5 +1,3 @@
-import javax.inject.Inject
-
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.compose)
@@ -50,179 +48,6 @@ kotlin {
     jvmToolchain(17)
 }
 
-// --- Protobuf / gRPC code generation via protoc ---
-//
-// The protobuf-gradle-plugin (0.9.6) does not yet support AGP 9, so we drive
-// protoc directly. A custom task exposes DirectoryProperty outputs that the
-// AGP Variant API can consume.
-
-abstract class GenerateProtoTask : DefaultTask() {
-    @get:Inject
-    abstract val execOps: ExecOperations
-    @get:InputDirectory
-    abstract val protoSourceDir: DirectoryProperty
-
-    @get:InputFiles
-    abstract val protocFile: ConfigurableFileCollection
-
-    @get:InputFiles
-    abstract val grpcJavaPluginFile: ConfigurableFileCollection
-
-    @get:InputFiles
-    abstract val grpcKotlinPluginFile: ConfigurableFileCollection
-
-    /** Protobuf JAR containing well-known type .proto files (google/protobuf/*.proto). */
-    @get:InputFiles
-    abstract val protobufIncludesJar: ConfigurableFileCollection
-
-    /** Temp directory for extracting well-known proto includes. */
-    @get:OutputDirectory
-    abstract val includesExtractDir: DirectoryProperty
-
-    /** Java sources generated by protoc (messages). */
-    @get:OutputDirectory
-    abstract val javaOutputDir: DirectoryProperty
-
-    /** Kotlin sources generated by protoc (Kotlin DSL builders). */
-    @get:OutputDirectory
-    abstract val kotlinOutputDir: DirectoryProperty
-
-    /** Java sources generated by protoc-gen-grpc-java (service stubs). */
-    @get:OutputDirectory
-    abstract val grpcOutputDir: DirectoryProperty
-
-    /** Kotlin sources generated by protoc-gen-grpc-kotlin (coroutine stubs). */
-    @get:OutputDirectory
-    abstract val grpcKtOutputDir: DirectoryProperty
-
-    @TaskAction
-    fun generate() {
-        val javaOut = javaOutputDir.get().asFile
-        val kotlinOut = kotlinOutputDir.get().asFile
-        val grpcOut = grpcOutputDir.get().asFile
-        val grpcKtOut = grpcKtOutputDir.get().asFile
-
-        listOf(javaOut, kotlinOut, grpcOut, grpcKtOut).forEach { it.mkdirs() }
-
-        // Extract well-known .proto files from the protobuf JAR.
-        val extractDir = includesExtractDir.get().asFile
-        extractDir.mkdirs()
-        val jar = protobufIncludesJar.singleFile
-        java.util.zip.ZipFile(jar).use { zip ->
-            zip.entries().asSequence()
-                .filter { it.name.endsWith(".proto") }
-                .forEach { entry ->
-                    val outFile = File(extractDir, entry.name)
-                    outFile.parentFile.mkdirs()
-                    zip.getInputStream(entry).use { input ->
-                        outFile.outputStream().use { output -> input.copyTo(output) }
-                    }
-                }
-        }
-
-        val protoc = protocFile.singleFile.also { it.setExecutable(true) }
-        val grpcJava = grpcJavaPluginFile.singleFile.also { it.setExecutable(true) }
-        val grpcKt = grpcKotlinPluginFile.singleFile.also { it.setExecutable(true) }
-
-        val protoDir = protoSourceDir.get().asFile
-        val protoFiles = protoDir.walkTopDown().filter { it.extension == "proto" }.toList()
-        if (protoFiles.isEmpty()) return
-
-        execOps.exec {
-            commandLine(
-                protoc.absolutePath,
-                "--proto_path=${protoDir.absolutePath}",
-                "--proto_path=${extractDir.absolutePath}",
-                "--java_out=lite:${javaOut.absolutePath}",
-                "--kotlin_out=lite:${kotlinOut.absolutePath}",
-                "--plugin=protoc-gen-grpc=${grpcJava.absolutePath}",
-                "--grpc_out=lite:${grpcOut.absolutePath}",
-                "--plugin=protoc-gen-grpckt=${grpcKt.absolutePath}",
-                "--grpckt_out=lite:${grpcKtOut.absolutePath}",
-                *protoFiles.map { it.absolutePath }.toTypedArray(),
-            )
-        }
-    }
-}
-
-val protobufIncludes: Configuration by configurations.creating {
-    isTransitive = false
-}
-val protocArtifact: Configuration by configurations.creating {
-    isTransitive = false
-}
-val grpcJavaPlugin: Configuration by configurations.creating {
-    isTransitive = false
-}
-val grpcKotlinPlugin: Configuration by configurations.creating {
-    isTransitive = false
-}
-
-// Determine the OS/arch classifier for native protoc binaries.
-val protocClassifier: String = run {
-    val os = System.getProperty("os.name").lowercase()
-    val arch = System.getProperty("os.arch").lowercase()
-    val osName = when {
-        os.contains("mac") || os.contains("darwin") -> "osx"
-        os.contains("linux") -> "linux"
-        os.contains("windows") -> "windows"
-        else -> error("Unsupported OS: $os")
-    }
-    val archName = when {
-        arch.contains("aarch64") || arch.contains("arm64") -> "aarch_64"
-        arch.contains("amd64") || arch.contains("x86_64") -> "x86_64"
-        else -> error("Unsupported architecture: $arch")
-    }
-    "$osName-$archName"
-}
-
-dependencies {
-    protobufIncludes("com.google.protobuf:protobuf-java:${libs.versions.protobuf.get()}")
-    protocArtifact("com.google.protobuf:protoc:${libs.versions.protobuf.get()}:$protocClassifier@exe")
-    grpcJavaPlugin("io.grpc:protoc-gen-grpc-java:${libs.versions.grpc.get()}:$protocClassifier@exe")
-    grpcKotlinPlugin("io.grpc:protoc-gen-grpc-kotlin:${libs.versions.grpcKotlin.get()}:jdk8@jar")
-}
-
-val protoGenBase = layout.buildDirectory.dir("generated/source/proto/main")
-
-val generateProto by tasks.registering(GenerateProtoTask::class) {
-    description = "Generate Kotlin/gRPC sources from .proto files"
-    group = "build"
-
-    protoSourceDir.set(layout.projectDirectory.dir("src/main/proto"))
-    protocFile.from(protocArtifact)
-    grpcJavaPluginFile.from(grpcJavaPlugin)
-    grpcKotlinPluginFile.from(grpcKotlinPlugin)
-
-    protobufIncludesJar.from(protobufIncludes)
-    includesExtractDir.set(protoGenBase.map { it.dir("includes") })
-
-    javaOutputDir.set(protoGenBase.map { it.dir("java") })
-    kotlinOutputDir.set(protoGenBase.map { it.dir("kotlin") })
-    grpcOutputDir.set(protoGenBase.map { it.dir("grpc") })
-    grpcKtOutputDir.set(protoGenBase.map { it.dir("grpckt") })
-}
-
-// Register generated directories with AGP via the Variant API (AGP 9+).
-androidComponents {
-    onVariants { variant ->
-        variant.sources.java?.addGeneratedSourceDirectory(
-            generateProto, GenerateProtoTask::javaOutputDir,
-        )
-        variant.sources.java?.addGeneratedSourceDirectory(
-            generateProto, GenerateProtoTask::grpcOutputDir,
-        )
-        variant.sources.kotlin?.addGeneratedSourceDirectory(
-            generateProto, GenerateProtoTask::kotlinOutputDir,
-        )
-        variant.sources.kotlin?.addGeneratedSourceDirectory(
-            generateProto, GenerateProtoTask::grpcKtOutputDir,
-        )
-    }
-}
-
-// --- end protobuf generation ---
-
 dependencies {
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.activity.compose)

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkRequest.java

@@ -0,0 +1,294 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.CreateShareLinkRequest}
+ */
+public  final class CreateShareLinkRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        CreateShareLinkRequest, CreateShareLinkRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.CreateShareLinkRequest)
+    CreateShareLinkRequestOrBuilder {
+  private CreateShareLinkRequest() {
+  }
+  public static final int NOTEBOOK_ID_FIELD_NUMBER = 1;
+  private long notebookId_;
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  @java.lang.Override
+  public long getNotebookId() {
+    return notebookId_;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @param value The notebookId to set.
+   */
+  private void setNotebookId(long value) {
+    
+    notebookId_ = value;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   */
+  private void clearNotebookId() {
+    
+    notebookId_ = 0L;
+  }
+
+  public static final int EXPIRES_IN_SECONDS_FIELD_NUMBER = 2;
+  private long expiresInSeconds_;
+  /**
+   * <code>int64 expires_in_seconds = 2;</code>
+   * @return The expiresInSeconds.
+   */
+  @java.lang.Override
+  public long getExpiresInSeconds() {
+    return expiresInSeconds_;
+  }
+  /**
+   * <code>int64 expires_in_seconds = 2;</code>
+   * @param value The expiresInSeconds to set.
+   */
+  private void setExpiresInSeconds(long value) {
+    
+    expiresInSeconds_ = value;
+  }
+  /**
+   * <code>int64 expires_in_seconds = 2;</code>
+   */
+  private void clearExpiresInSeconds() {
+    
+    expiresInSeconds_ = 0L;
+  }
+
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.CreateShareLinkRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.CreateShareLinkRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.CreateShareLinkRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.CreateShareLinkRequest)
+      net.metacircular.engpad.proto.v1.CreateShareLinkRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.CreateShareLinkRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return The notebookId.
+     */
+    @java.lang.Override
+    public long getNotebookId() {
+      return instance.getNotebookId();
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @param value The notebookId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNotebookId(long value) {
+      copyOnWrite();
+      instance.setNotebookId(value);
+      return this;
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNotebookId() {
+      copyOnWrite();
+      instance.clearNotebookId();
+      return this;
+    }
+
+    /**
+     * <code>int64 expires_in_seconds = 2;</code>
+     * @return The expiresInSeconds.
+     */
+    @java.lang.Override
+    public long getExpiresInSeconds() {
+      return instance.getExpiresInSeconds();
+    }
+    /**
+     * <code>int64 expires_in_seconds = 2;</code>
+     * @param value The expiresInSeconds to set.
+     * @return This builder for chaining.
+     */
+    public Builder setExpiresInSeconds(long value) {
+      copyOnWrite();
+      instance.setExpiresInSeconds(value);
+      return this;
+    }
+    /**
+     * <code>int64 expires_in_seconds = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearExpiresInSeconds() {
+      copyOnWrite();
+      instance.clearExpiresInSeconds();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.CreateShareLinkRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.CreateShareLinkRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "notebookId_",
+            "expiresInSeconds_",
+          };
+          java.lang.String info =
+              "\u0000\u0002\u0000\u0000\u0001\u0002\u0002\u0000\u0000\u0000\u0001\u0002\u0002\u0002" +
+              "";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.CreateShareLinkRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.CreateShareLinkRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.CreateShareLinkRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.CreateShareLinkRequest)
+  private static final net.metacircular.engpad.proto.v1.CreateShareLinkRequest DEFAULT_INSTANCE;
+  static {
+    CreateShareLinkRequest defaultInstance = new CreateShareLinkRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      CreateShareLinkRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<CreateShareLinkRequest> PARSER;
+
+  public static com.google.protobuf.Parser<CreateShareLinkRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkRequestKt.kt

@@ -0,0 +1,62 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializecreateShareLinkRequest")
+public inline fun createShareLinkRequest(block: net.metacircular.engpad.proto.v1.CreateShareLinkRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.CreateShareLinkRequest =
+  net.metacircular.engpad.proto.v1.CreateShareLinkRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.CreateShareLinkRequest.newBuilder()).apply { block() }._build()
+public object CreateShareLinkRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.CreateShareLinkRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.CreateShareLinkRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.CreateShareLinkRequest = _builder.build()
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public var notebookId: kotlin.Long
+      @JvmName("getNotebookId")
+      get() = _builder.getNotebookId()
+      @JvmName("setNotebookId")
+      set(value) {
+        _builder.setNotebookId(value)
+      }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public fun clearNotebookId() {
+      _builder.clearNotebookId()
+    }
+
+    /**
+     * <code>int64 expires_in_seconds = 2;</code>
+     */
+    public var expiresInSeconds: kotlin.Long
+      @JvmName("getExpiresInSeconds")
+      get() = _builder.getExpiresInSeconds()
+      @JvmName("setExpiresInSeconds")
+      set(value) {
+        _builder.setExpiresInSeconds(value)
+      }
+    /**
+     * <code>int64 expires_in_seconds = 2;</code>
+     */
+    public fun clearExpiresInSeconds() {
+      _builder.clearExpiresInSeconds()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.CreateShareLinkRequest.copy(block: net.metacircular.engpad.proto.v1.CreateShareLinkRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.CreateShareLinkRequest =
+  net.metacircular.engpad.proto.v1.CreateShareLinkRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkRequestOrBuilder.java

@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface CreateShareLinkRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.CreateShareLinkRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  long getNotebookId();
+
+  /**
+   * <code>int64 expires_in_seconds = 2;</code>
+   * @return The expiresInSeconds.
+   */
+  long getExpiresInSeconds();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkResponse.java

@@ -0,0 +1,474 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.CreateShareLinkResponse}
+ */
+public  final class CreateShareLinkResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        CreateShareLinkResponse, CreateShareLinkResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.CreateShareLinkResponse)
+    CreateShareLinkResponseOrBuilder {
+  private CreateShareLinkResponse() {
+    token_ = "";
+    url_ = "";
+  }
+  public static final int TOKEN_FIELD_NUMBER = 1;
+  private java.lang.String token_;
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  @java.lang.Override
+  public java.lang.String getToken() {
+    return token_;
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTokenBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(token_);
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The token to set.
+   */
+  private void setToken(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    token_ = value;
+  }
+  /**
+   * <code>string token = 1;</code>
+   */
+  private void clearToken() {
+    
+    token_ = getDefaultInstance().getToken();
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The bytes for token to set.
+   */
+  private void setTokenBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    token_ = value.toStringUtf8();
+    
+  }
+
+  public static final int URL_FIELD_NUMBER = 2;
+  private java.lang.String url_;
+  /**
+   * <code>string url = 2;</code>
+   * @return The url.
+   */
+  @java.lang.Override
+  public java.lang.String getUrl() {
+    return url_;
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @return The bytes for url.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getUrlBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(url_);
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @param value The url to set.
+   */
+  private void setUrl(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    url_ = value;
+  }
+  /**
+   * <code>string url = 2;</code>
+   */
+  private void clearUrl() {
+    
+    url_ = getDefaultInstance().getUrl();
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @param value The bytes for url to set.
+   */
+  private void setUrlBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    url_ = value.toStringUtf8();
+    
+  }
+
+  public static final int EXPIRES_AT_FIELD_NUMBER = 3;
+  private com.google.protobuf.Timestamp expiresAt_;
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   */
+  @java.lang.Override
+  public boolean hasExpiresAt() {
+    return expiresAt_ != null;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getExpiresAt() {
+    return expiresAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : expiresAt_;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   */
+  private void setExpiresAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  expiresAt_ = value;
+    
+    }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   */
+  @java.lang.SuppressWarnings({"ReferenceEquality"})
+  private void mergeExpiresAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  if (expiresAt_ != null &&
+        expiresAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+      expiresAt_ =
+        com.google.protobuf.Timestamp.newBuilder(expiresAt_).mergeFrom(value).buildPartial();
+    } else {
+      expiresAt_ = value;
+    }
+    
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   */
+  private void clearExpiresAt() {  expiresAt_ = null;
+    
+  }
+
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.CreateShareLinkResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.CreateShareLinkResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.CreateShareLinkResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.CreateShareLinkResponse)
+      net.metacircular.engpad.proto.v1.CreateShareLinkResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.CreateShareLinkResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>string token = 1;</code>
+     * @return The token.
+     */
+    @java.lang.Override
+    public java.lang.String getToken() {
+      return instance.getToken();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return The bytes for token.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTokenBytes() {
+      return instance.getTokenBytes();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setToken(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setToken(value);
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearToken() {
+      copyOnWrite();
+      instance.clearToken();
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The bytes for token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTokenBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setTokenBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>string url = 2;</code>
+     * @return The url.
+     */
+    @java.lang.Override
+    public java.lang.String getUrl() {
+      return instance.getUrl();
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @return The bytes for url.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getUrlBytes() {
+      return instance.getUrlBytes();
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @param value The url to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUrl(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setUrl(value);
+      return this;
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUrl() {
+      copyOnWrite();
+      instance.clearUrl();
+      return this;
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @param value The bytes for url to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUrlBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setUrlBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    @java.lang.Override
+    public boolean hasExpiresAt() {
+      return instance.hasExpiresAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getExpiresAt() {
+      return instance.getExpiresAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public Builder setExpiresAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.setExpiresAt(value);
+      return this;
+      }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public Builder setExpiresAt(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      copyOnWrite();
+      instance.setExpiresAt(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public Builder mergeExpiresAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.mergeExpiresAt(value);
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public Builder clearExpiresAt() {  copyOnWrite();
+      instance.clearExpiresAt();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.CreateShareLinkResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.CreateShareLinkResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "token_",
+            "url_",
+            "expiresAt_",
+          };
+          java.lang.String info =
+              "\u0000\u0003\u0000\u0000\u0001\u0003\u0003\u0000\u0000\u0000\u0001\u0208\u0002\u0208" +
+              "\u0003\t";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.CreateShareLinkResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.CreateShareLinkResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.CreateShareLinkResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.CreateShareLinkResponse)
+  private static final net.metacircular.engpad.proto.v1.CreateShareLinkResponse DEFAULT_INSTANCE;
+  static {
+    CreateShareLinkResponse defaultInstance = new CreateShareLinkResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      CreateShareLinkResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.CreateShareLinkResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<CreateShareLinkResponse> PARSER;
+
+  public static com.google.protobuf.Parser<CreateShareLinkResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkResponseKt.kt

@@ -0,0 +1,89 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializecreateShareLinkResponse")
+public inline fun createShareLinkResponse(block: net.metacircular.engpad.proto.v1.CreateShareLinkResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.CreateShareLinkResponse =
+  net.metacircular.engpad.proto.v1.CreateShareLinkResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.CreateShareLinkResponse.newBuilder()).apply { block() }._build()
+public object CreateShareLinkResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.CreateShareLinkResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.CreateShareLinkResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.CreateShareLinkResponse = _builder.build()
+
+    /**
+     * <code>string token = 1;</code>
+     */
+    public var token: kotlin.String
+      @JvmName("getToken")
+      get() = _builder.getToken()
+      @JvmName("setToken")
+      set(value) {
+        _builder.setToken(value)
+      }
+    /**
+     * <code>string token = 1;</code>
+     */
+    public fun clearToken() {
+      _builder.clearToken()
+    }
+
+    /**
+     * <code>string url = 2;</code>
+     */
+    public var url: kotlin.String
+      @JvmName("getUrl")
+      get() = _builder.getUrl()
+      @JvmName("setUrl")
+      set(value) {
+        _builder.setUrl(value)
+      }
+    /**
+     * <code>string url = 2;</code>
+     */
+    public fun clearUrl() {
+      _builder.clearUrl()
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public var expiresAt: com.google.protobuf.Timestamp
+      @JvmName("getExpiresAt")
+      get() = _builder.getExpiresAt()
+      @JvmName("setExpiresAt")
+      set(value) {
+        _builder.setExpiresAt(value)
+      }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     */
+    public fun clearExpiresAt() {
+      _builder.clearExpiresAt()
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+     * @return Whether the expiresAt field is set.
+     */
+    public fun hasExpiresAt(): kotlin.Boolean {
+      return _builder.hasExpiresAt()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.CreateShareLinkResponse.copy(block: net.metacircular.engpad.proto.v1.CreateShareLinkResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.CreateShareLinkResponse =
+  net.metacircular.engpad.proto.v1.CreateShareLinkResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+
+val net.metacircular.engpad.proto.v1.CreateShareLinkResponseOrBuilder.expiresAtOrNull: com.google.protobuf.Timestamp?
+  get() = if (hasExpiresAt()) getExpiresAt() else null
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/CreateShareLinkResponseOrBuilder.java

@@ -0,0 +1,44 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface CreateShareLinkResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.CreateShareLinkResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  java.lang.String getToken();
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  com.google.protobuf.ByteString
+      getTokenBytes();
+
+  /**
+   * <code>string url = 2;</code>
+   * @return The url.
+   */
+  java.lang.String getUrl();
+  /**
+   * <code>string url = 2;</code>
+   * @return The bytes for url.
+   */
+  com.google.protobuf.ByteString
+      getUrlBytes();
+
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   * @return Whether the expiresAt field is set.
+   */
+  boolean hasExpiresAt();
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 3;</code>
+   * @return The expiresAt.
+   */
+  com.google.protobuf.Timestamp getExpiresAt();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookRequest.java

@@ -0,0 +1,238 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.DeleteNotebookRequest}
+ */
+public  final class DeleteNotebookRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        DeleteNotebookRequest, DeleteNotebookRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.DeleteNotebookRequest)
+    DeleteNotebookRequestOrBuilder {
+  private DeleteNotebookRequest() {
+  }
+  public static final int NOTEBOOK_ID_FIELD_NUMBER = 1;
+  private long notebookId_;
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  @java.lang.Override
+  public long getNotebookId() {
+    return notebookId_;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @param value The notebookId to set.
+   */
+  private void setNotebookId(long value) {
+    
+    notebookId_ = value;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   */
+  private void clearNotebookId() {
+    
+    notebookId_ = 0L;
+  }
+
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.DeleteNotebookRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.DeleteNotebookRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.DeleteNotebookRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.DeleteNotebookRequest)
+      net.metacircular.engpad.proto.v1.DeleteNotebookRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.DeleteNotebookRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return The notebookId.
+     */
+    @java.lang.Override
+    public long getNotebookId() {
+      return instance.getNotebookId();
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @param value The notebookId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNotebookId(long value) {
+      copyOnWrite();
+      instance.setNotebookId(value);
+      return this;
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNotebookId() {
+      copyOnWrite();
+      instance.clearNotebookId();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.DeleteNotebookRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.DeleteNotebookRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "notebookId_",
+          };
+          java.lang.String info =
+              "\u0000\u0001\u0000\u0000\u0001\u0001\u0001\u0000\u0000\u0000\u0001\u0002";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.DeleteNotebookRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.DeleteNotebookRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.DeleteNotebookRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.DeleteNotebookRequest)
+  private static final net.metacircular.engpad.proto.v1.DeleteNotebookRequest DEFAULT_INSTANCE;
+  static {
+    DeleteNotebookRequest defaultInstance = new DeleteNotebookRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      DeleteNotebookRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<DeleteNotebookRequest> PARSER;
+
+  public static com.google.protobuf.Parser<DeleteNotebookRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookRequestKt.kt

@@ -0,0 +1,45 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializedeleteNotebookRequest")
+public inline fun deleteNotebookRequest(block: net.metacircular.engpad.proto.v1.DeleteNotebookRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.DeleteNotebookRequest =
+  net.metacircular.engpad.proto.v1.DeleteNotebookRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.DeleteNotebookRequest.newBuilder()).apply { block() }._build()
+public object DeleteNotebookRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.DeleteNotebookRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.DeleteNotebookRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.DeleteNotebookRequest = _builder.build()
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public var notebookId: kotlin.Long
+      @JvmName("getNotebookId")
+      get() = _builder.getNotebookId()
+      @JvmName("setNotebookId")
+      set(value) {
+        _builder.setNotebookId(value)
+      }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public fun clearNotebookId() {
+      _builder.clearNotebookId()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.DeleteNotebookRequest.copy(block: net.metacircular.engpad.proto.v1.DeleteNotebookRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.DeleteNotebookRequest =
+  net.metacircular.engpad.proto.v1.DeleteNotebookRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookRequestOrBuilder.java

@@ -0,0 +1,15 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface DeleteNotebookRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.DeleteNotebookRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  long getNotebookId();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookResponse.java

@@ -0,0 +1,181 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.DeleteNotebookResponse}
+ */
+public  final class DeleteNotebookResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        DeleteNotebookResponse, DeleteNotebookResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.DeleteNotebookResponse)
+    DeleteNotebookResponseOrBuilder {
+  private DeleteNotebookResponse() {
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.DeleteNotebookResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.DeleteNotebookResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.DeleteNotebookResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.DeleteNotebookResponse)
+      net.metacircular.engpad.proto.v1.DeleteNotebookResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.DeleteNotebookResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.DeleteNotebookResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.DeleteNotebookResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = null;java.lang.String info =
+              "\u0000\u0000";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.DeleteNotebookResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.DeleteNotebookResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.DeleteNotebookResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.DeleteNotebookResponse)
+  private static final net.metacircular.engpad.proto.v1.DeleteNotebookResponse DEFAULT_INSTANCE;
+  static {
+    DeleteNotebookResponse defaultInstance = new DeleteNotebookResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      DeleteNotebookResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.DeleteNotebookResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<DeleteNotebookResponse> PARSER;
+
+  public static com.google.protobuf.Parser<DeleteNotebookResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookResponseKt.kt

@@ -0,0 +1,28 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializedeleteNotebookResponse")
+public inline fun deleteNotebookResponse(block: net.metacircular.engpad.proto.v1.DeleteNotebookResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.DeleteNotebookResponse =
+  net.metacircular.engpad.proto.v1.DeleteNotebookResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.DeleteNotebookResponse.newBuilder()).apply { block() }._build()
+public object DeleteNotebookResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.DeleteNotebookResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.DeleteNotebookResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.DeleteNotebookResponse = _builder.build()
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.DeleteNotebookResponse.copy(block: net.metacircular.engpad.proto.v1.DeleteNotebookResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.DeleteNotebookResponse =
+  net.metacircular.engpad.proto.v1.DeleteNotebookResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/DeleteNotebookResponseOrBuilder.java

@@ -0,0 +1,9 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface DeleteNotebookResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.DeleteNotebookResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/EngPadSyncServiceGrpc.java

@@ -0,0 +1,621 @@
+package net.metacircular.engpad.proto.v1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+
+/**
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler (version 1.69.0)",
+    comments = "Source: engpad/v1/sync.proto")
+@io.grpc.stub.annotations.GrpcGenerated
+public final class EngPadSyncServiceGrpc {
+
+  private EngPadSyncServiceGrpc() {}
+
+  public static final java.lang.String SERVICE_NAME = "engpad.v1.EngPadSyncService";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.SyncNotebookRequest,
+      net.metacircular.engpad.proto.v1.SyncNotebookResponse> getSyncNotebookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "SyncNotebook",
+      requestType = net.metacircular.engpad.proto.v1.SyncNotebookRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.SyncNotebookResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.SyncNotebookRequest,
+      net.metacircular.engpad.proto.v1.SyncNotebookResponse> getSyncNotebookMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.SyncNotebookRequest, net.metacircular.engpad.proto.v1.SyncNotebookResponse> getSyncNotebookMethod;
+    if ((getSyncNotebookMethod = EngPadSyncServiceGrpc.getSyncNotebookMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getSyncNotebookMethod = EngPadSyncServiceGrpc.getSyncNotebookMethod) == null) {
+          EngPadSyncServiceGrpc.getSyncNotebookMethod = getSyncNotebookMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.SyncNotebookRequest, net.metacircular.engpad.proto.v1.SyncNotebookResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "SyncNotebook"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.SyncNotebookRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.SyncNotebookResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getSyncNotebookMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.DeleteNotebookRequest,
+      net.metacircular.engpad.proto.v1.DeleteNotebookResponse> getDeleteNotebookMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteNotebook",
+      requestType = net.metacircular.engpad.proto.v1.DeleteNotebookRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.DeleteNotebookResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.DeleteNotebookRequest,
+      net.metacircular.engpad.proto.v1.DeleteNotebookResponse> getDeleteNotebookMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.DeleteNotebookRequest, net.metacircular.engpad.proto.v1.DeleteNotebookResponse> getDeleteNotebookMethod;
+    if ((getDeleteNotebookMethod = EngPadSyncServiceGrpc.getDeleteNotebookMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getDeleteNotebookMethod = EngPadSyncServiceGrpc.getDeleteNotebookMethod) == null) {
+          EngPadSyncServiceGrpc.getDeleteNotebookMethod = getDeleteNotebookMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.DeleteNotebookRequest, net.metacircular.engpad.proto.v1.DeleteNotebookResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteNotebook"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.DeleteNotebookRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.DeleteNotebookResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getDeleteNotebookMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListNotebooksRequest,
+      net.metacircular.engpad.proto.v1.ListNotebooksResponse> getListNotebooksMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListNotebooks",
+      requestType = net.metacircular.engpad.proto.v1.ListNotebooksRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.ListNotebooksResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListNotebooksRequest,
+      net.metacircular.engpad.proto.v1.ListNotebooksResponse> getListNotebooksMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListNotebooksRequest, net.metacircular.engpad.proto.v1.ListNotebooksResponse> getListNotebooksMethod;
+    if ((getListNotebooksMethod = EngPadSyncServiceGrpc.getListNotebooksMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getListNotebooksMethod = EngPadSyncServiceGrpc.getListNotebooksMethod) == null) {
+          EngPadSyncServiceGrpc.getListNotebooksMethod = getListNotebooksMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.ListNotebooksRequest, net.metacircular.engpad.proto.v1.ListNotebooksResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListNotebooks"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.ListNotebooksRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.ListNotebooksResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getListNotebooksMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.CreateShareLinkRequest,
+      net.metacircular.engpad.proto.v1.CreateShareLinkResponse> getCreateShareLinkMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateShareLink",
+      requestType = net.metacircular.engpad.proto.v1.CreateShareLinkRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.CreateShareLinkResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.CreateShareLinkRequest,
+      net.metacircular.engpad.proto.v1.CreateShareLinkResponse> getCreateShareLinkMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.CreateShareLinkRequest, net.metacircular.engpad.proto.v1.CreateShareLinkResponse> getCreateShareLinkMethod;
+    if ((getCreateShareLinkMethod = EngPadSyncServiceGrpc.getCreateShareLinkMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getCreateShareLinkMethod = EngPadSyncServiceGrpc.getCreateShareLinkMethod) == null) {
+          EngPadSyncServiceGrpc.getCreateShareLinkMethod = getCreateShareLinkMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.CreateShareLinkRequest, net.metacircular.engpad.proto.v1.CreateShareLinkResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateShareLink"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.CreateShareLinkRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.CreateShareLinkResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getCreateShareLinkMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest,
+      net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> getRevokeShareLinkMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "RevokeShareLink",
+      requestType = net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest,
+      net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> getRevokeShareLinkMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest, net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> getRevokeShareLinkMethod;
+    if ((getRevokeShareLinkMethod = EngPadSyncServiceGrpc.getRevokeShareLinkMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getRevokeShareLinkMethod = EngPadSyncServiceGrpc.getRevokeShareLinkMethod) == null) {
+          EngPadSyncServiceGrpc.getRevokeShareLinkMethod = getRevokeShareLinkMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest, net.metacircular.engpad.proto.v1.RevokeShareLinkResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "RevokeShareLink"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getRevokeShareLinkMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListShareLinksRequest,
+      net.metacircular.engpad.proto.v1.ListShareLinksResponse> getListShareLinksMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListShareLinks",
+      requestType = net.metacircular.engpad.proto.v1.ListShareLinksRequest.class,
+      responseType = net.metacircular.engpad.proto.v1.ListShareLinksResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListShareLinksRequest,
+      net.metacircular.engpad.proto.v1.ListShareLinksResponse> getListShareLinksMethod() {
+    io.grpc.MethodDescriptor<net.metacircular.engpad.proto.v1.ListShareLinksRequest, net.metacircular.engpad.proto.v1.ListShareLinksResponse> getListShareLinksMethod;
+    if ((getListShareLinksMethod = EngPadSyncServiceGrpc.getListShareLinksMethod) == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        if ((getListShareLinksMethod = EngPadSyncServiceGrpc.getListShareLinksMethod) == null) {
+          EngPadSyncServiceGrpc.getListShareLinksMethod = getListShareLinksMethod =
+              io.grpc.MethodDescriptor.<net.metacircular.engpad.proto.v1.ListShareLinksRequest, net.metacircular.engpad.proto.v1.ListShareLinksResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListShareLinks"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.ListShareLinksRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.lite.ProtoLiteUtils.marshaller(
+                  net.metacircular.engpad.proto.v1.ListShareLinksResponse.getDefaultInstance()))
+              .build();
+        }
+      }
+    }
+    return getListShareLinksMethod;
+  }
+
+  /**
+   * Creates a new async stub that supports all call types for the service
+   */
+  public static EngPadSyncServiceStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceStub>() {
+        @java.lang.Override
+        public EngPadSyncServiceStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new EngPadSyncServiceStub(channel, callOptions);
+        }
+      };
+    return EngPadSyncServiceStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static EngPadSyncServiceBlockingStub newBlockingStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceBlockingStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceBlockingStub>() {
+        @java.lang.Override
+        public EngPadSyncServiceBlockingStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new EngPadSyncServiceBlockingStub(channel, callOptions);
+        }
+      };
+    return EngPadSyncServiceBlockingStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new ListenableFuture-style stub that supports unary calls on the service
+   */
+  public static EngPadSyncServiceFutureStub newFutureStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceFutureStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<EngPadSyncServiceFutureStub>() {
+        @java.lang.Override
+        public EngPadSyncServiceFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new EngPadSyncServiceFutureStub(channel, callOptions);
+        }
+      };
+    return EngPadSyncServiceFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   */
+  public interface AsyncService {
+
+    /**
+     */
+    default void syncNotebook(net.metacircular.engpad.proto.v1.SyncNotebookRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.SyncNotebookResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getSyncNotebookMethod(), responseObserver);
+    }
+
+    /**
+     */
+    default void deleteNotebook(net.metacircular.engpad.proto.v1.DeleteNotebookRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.DeleteNotebookResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getDeleteNotebookMethod(), responseObserver);
+    }
+
+    /**
+     */
+    default void listNotebooks(net.metacircular.engpad.proto.v1.ListNotebooksRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListNotebooksResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListNotebooksMethod(), responseObserver);
+    }
+
+    /**
+     */
+    default void createShareLink(net.metacircular.engpad.proto.v1.CreateShareLinkRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.CreateShareLinkResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getCreateShareLinkMethod(), responseObserver);
+    }
+
+    /**
+     */
+    default void revokeShareLink(net.metacircular.engpad.proto.v1.RevokeShareLinkRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getRevokeShareLinkMethod(), responseObserver);
+    }
+
+    /**
+     */
+    default void listShareLinks(net.metacircular.engpad.proto.v1.ListShareLinksRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListShareLinksResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListShareLinksMethod(), responseObserver);
+    }
+  }
+
+  /**
+   * Base class for the server implementation of the service EngPadSyncService.
+   */
+  public static abstract class EngPadSyncServiceImplBase
+      implements io.grpc.BindableService, AsyncService {
+
+    @java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
+      return EngPadSyncServiceGrpc.bindService(this);
+    }
+  }
+
+  /**
+   * A stub to allow clients to do asynchronous rpc calls to service EngPadSyncService.
+   */
+  public static final class EngPadSyncServiceStub
+      extends io.grpc.stub.AbstractAsyncStub<EngPadSyncServiceStub> {
+    private EngPadSyncServiceStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EngPadSyncServiceStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EngPadSyncServiceStub(channel, callOptions);
+    }
+
+    /**
+     */
+    public void syncNotebook(net.metacircular.engpad.proto.v1.SyncNotebookRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.SyncNotebookResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getSyncNotebookMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     */
+    public void deleteNotebook(net.metacircular.engpad.proto.v1.DeleteNotebookRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.DeleteNotebookResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getDeleteNotebookMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     */
+    public void listNotebooks(net.metacircular.engpad.proto.v1.ListNotebooksRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListNotebooksResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListNotebooksMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     */
+    public void createShareLink(net.metacircular.engpad.proto.v1.CreateShareLinkRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.CreateShareLinkResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getCreateShareLinkMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     */
+    public void revokeShareLink(net.metacircular.engpad.proto.v1.RevokeShareLinkRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getRevokeShareLinkMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     */
+    public void listShareLinks(net.metacircular.engpad.proto.v1.ListShareLinksRequest request,
+        io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListShareLinksResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListShareLinksMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   * A stub to allow clients to do synchronous rpc calls to service EngPadSyncService.
+   */
+  public static final class EngPadSyncServiceBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub<EngPadSyncServiceBlockingStub> {
+    private EngPadSyncServiceBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EngPadSyncServiceBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EngPadSyncServiceBlockingStub(channel, callOptions);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.SyncNotebookResponse syncNotebook(net.metacircular.engpad.proto.v1.SyncNotebookRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getSyncNotebookMethod(), getCallOptions(), request);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.DeleteNotebookResponse deleteNotebook(net.metacircular.engpad.proto.v1.DeleteNotebookRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteNotebookMethod(), getCallOptions(), request);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.ListNotebooksResponse listNotebooks(net.metacircular.engpad.proto.v1.ListNotebooksRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListNotebooksMethod(), getCallOptions(), request);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.CreateShareLinkResponse createShareLink(net.metacircular.engpad.proto.v1.CreateShareLinkRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateShareLinkMethod(), getCallOptions(), request);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.RevokeShareLinkResponse revokeShareLink(net.metacircular.engpad.proto.v1.RevokeShareLinkRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getRevokeShareLinkMethod(), getCallOptions(), request);
+    }
+
+    /**
+     */
+    public net.metacircular.engpad.proto.v1.ListShareLinksResponse listShareLinks(net.metacircular.engpad.proto.v1.ListShareLinksRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListShareLinksMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   * A stub to allow clients to do ListenableFuture-style rpc calls to service EngPadSyncService.
+   */
+  public static final class EngPadSyncServiceFutureStub
+      extends io.grpc.stub.AbstractFutureStub<EngPadSyncServiceFutureStub> {
+    private EngPadSyncServiceFutureStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected EngPadSyncServiceFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new EngPadSyncServiceFutureStub(channel, callOptions);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.SyncNotebookResponse> syncNotebook(
+        net.metacircular.engpad.proto.v1.SyncNotebookRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getSyncNotebookMethod(), getCallOptions()), request);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.DeleteNotebookResponse> deleteNotebook(
+        net.metacircular.engpad.proto.v1.DeleteNotebookRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getDeleteNotebookMethod(), getCallOptions()), request);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.ListNotebooksResponse> listNotebooks(
+        net.metacircular.engpad.proto.v1.ListNotebooksRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListNotebooksMethod(), getCallOptions()), request);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.CreateShareLinkResponse> createShareLink(
+        net.metacircular.engpad.proto.v1.CreateShareLinkRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getCreateShareLinkMethod(), getCallOptions()), request);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> revokeShareLink(
+        net.metacircular.engpad.proto.v1.RevokeShareLinkRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getRevokeShareLinkMethod(), getCallOptions()), request);
+    }
+
+    /**
+     */
+    public com.google.common.util.concurrent.ListenableFuture<net.metacircular.engpad.proto.v1.ListShareLinksResponse> listShareLinks(
+        net.metacircular.engpad.proto.v1.ListShareLinksRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListShareLinksMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_SYNC_NOTEBOOK = 0;
+  private static final int METHODID_DELETE_NOTEBOOK = 1;
+  private static final int METHODID_LIST_NOTEBOOKS = 2;
+  private static final int METHODID_CREATE_SHARE_LINK = 3;
+  private static final int METHODID_REVOKE_SHARE_LINK = 4;
+  private static final int METHODID_LIST_SHARE_LINKS = 5;
+
+  private static final class MethodHandlers<Req, Resp> implements
+      io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final AsyncService serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(AsyncService serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_SYNC_NOTEBOOK:
+          serviceImpl.syncNotebook((net.metacircular.engpad.proto.v1.SyncNotebookRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.SyncNotebookResponse>) responseObserver);
+          break;
+        case METHODID_DELETE_NOTEBOOK:
+          serviceImpl.deleteNotebook((net.metacircular.engpad.proto.v1.DeleteNotebookRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.DeleteNotebookResponse>) responseObserver);
+          break;
+        case METHODID_LIST_NOTEBOOKS:
+          serviceImpl.listNotebooks((net.metacircular.engpad.proto.v1.ListNotebooksRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListNotebooksResponse>) responseObserver);
+          break;
+        case METHODID_CREATE_SHARE_LINK:
+          serviceImpl.createShareLink((net.metacircular.engpad.proto.v1.CreateShareLinkRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.CreateShareLinkResponse>) responseObserver);
+          break;
+        case METHODID_REVOKE_SHARE_LINK:
+          serviceImpl.revokeShareLink((net.metacircular.engpad.proto.v1.RevokeShareLinkRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse>) responseObserver);
+          break;
+        case METHODID_LIST_SHARE_LINKS:
+          serviceImpl.listShareLinks((net.metacircular.engpad.proto.v1.ListShareLinksRequest) request,
+              (io.grpc.stub.StreamObserver<net.metacircular.engpad.proto.v1.ListShareLinksResponse>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  public static final io.grpc.ServerServiceDefinition bindService(AsyncService service) {
+    return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+        .addMethod(
+          getSyncNotebookMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.SyncNotebookRequest,
+              net.metacircular.engpad.proto.v1.SyncNotebookResponse>(
+                service, METHODID_SYNC_NOTEBOOK)))
+        .addMethod(
+          getDeleteNotebookMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.DeleteNotebookRequest,
+              net.metacircular.engpad.proto.v1.DeleteNotebookResponse>(
+                service, METHODID_DELETE_NOTEBOOK)))
+        .addMethod(
+          getListNotebooksMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.ListNotebooksRequest,
+              net.metacircular.engpad.proto.v1.ListNotebooksResponse>(
+                service, METHODID_LIST_NOTEBOOKS)))
+        .addMethod(
+          getCreateShareLinkMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.CreateShareLinkRequest,
+              net.metacircular.engpad.proto.v1.CreateShareLinkResponse>(
+                service, METHODID_CREATE_SHARE_LINK)))
+        .addMethod(
+          getRevokeShareLinkMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.RevokeShareLinkRequest,
+              net.metacircular.engpad.proto.v1.RevokeShareLinkResponse>(
+                service, METHODID_REVOKE_SHARE_LINK)))
+        .addMethod(
+          getListShareLinksMethod(),
+          io.grpc.stub.ServerCalls.asyncUnaryCall(
+            new MethodHandlers<
+              net.metacircular.engpad.proto.v1.ListShareLinksRequest,
+              net.metacircular.engpad.proto.v1.ListShareLinksResponse>(
+                service, METHODID_LIST_SHARE_LINKS)))
+        .build();
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (EngPadSyncServiceGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+              .addMethod(getSyncNotebookMethod())
+              .addMethod(getDeleteNotebookMethod())
+              .addMethod(getListNotebooksMethod())
+              .addMethod(getCreateShareLinkMethod())
+              .addMethod(getRevokeShareLinkMethod())
+              .addMethod(getListShareLinksMethod())
+              .build();
+        }
+      }
+    }
+    return result;
+  }
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksRequest.java

@@ -0,0 +1,181 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.ListNotebooksRequest}
+ */
+public  final class ListNotebooksRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        ListNotebooksRequest, ListNotebooksRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.ListNotebooksRequest)
+    ListNotebooksRequestOrBuilder {
+  private ListNotebooksRequest() {
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.ListNotebooksRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.ListNotebooksRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.ListNotebooksRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.ListNotebooksRequest)
+      net.metacircular.engpad.proto.v1.ListNotebooksRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.ListNotebooksRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.ListNotebooksRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.ListNotebooksRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = null;java.lang.String info =
+              "\u0000\u0000";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.ListNotebooksRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.ListNotebooksRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.ListNotebooksRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.ListNotebooksRequest)
+  private static final net.metacircular.engpad.proto.v1.ListNotebooksRequest DEFAULT_INSTANCE;
+  static {
+    ListNotebooksRequest defaultInstance = new ListNotebooksRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      ListNotebooksRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListNotebooksRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<ListNotebooksRequest> PARSER;
+
+  public static com.google.protobuf.Parser<ListNotebooksRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksRequestKt.kt

@@ -0,0 +1,28 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializelistNotebooksRequest")
+public inline fun listNotebooksRequest(block: net.metacircular.engpad.proto.v1.ListNotebooksRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListNotebooksRequest =
+  net.metacircular.engpad.proto.v1.ListNotebooksRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.ListNotebooksRequest.newBuilder()).apply { block() }._build()
+public object ListNotebooksRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.ListNotebooksRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.ListNotebooksRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.ListNotebooksRequest = _builder.build()
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.ListNotebooksRequest.copy(block: net.metacircular.engpad.proto.v1.ListNotebooksRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListNotebooksRequest =
+  net.metacircular.engpad.proto.v1.ListNotebooksRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksRequestOrBuilder.java

@@ -0,0 +1,9 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface ListNotebooksRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.ListNotebooksRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksResponse.java

@@ -0,0 +1,382 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.ListNotebooksResponse}
+ */
+public  final class ListNotebooksResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        ListNotebooksResponse, ListNotebooksResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.ListNotebooksResponse)
+    ListNotebooksResponseOrBuilder {
+  private ListNotebooksResponse() {
+    notebooks_ = emptyProtobufList();
+  }
+  public static final int NOTEBOOKS_FIELD_NUMBER = 1;
+  private com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.NotebookSummary> notebooks_;
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<net.metacircular.engpad.proto.v1.NotebookSummary> getNotebooksList() {
+    return notebooks_;
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  public java.util.List<? extends net.metacircular.engpad.proto.v1.NotebookSummaryOrBuilder> 
+      getNotebooksOrBuilderList() {
+    return notebooks_;
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  @java.lang.Override
+  public int getNotebooksCount() {
+    return notebooks_.size();
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  @java.lang.Override
+  public net.metacircular.engpad.proto.v1.NotebookSummary getNotebooks(int index) {
+    return notebooks_.get(index);
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  public net.metacircular.engpad.proto.v1.NotebookSummaryOrBuilder getNotebooksOrBuilder(
+      int index) {
+    return notebooks_.get(index);
+  }
+  private void ensureNotebooksIsMutable() {
+    com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.NotebookSummary> tmp = notebooks_;
+    if (!tmp.isModifiable()) {
+      notebooks_ =
+          com.google.protobuf.GeneratedMessageLite.mutableCopy(tmp);
+     }
+  }
+
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void setNotebooks(
+      int index, net.metacircular.engpad.proto.v1.NotebookSummary value) {
+    value.getClass();
+  ensureNotebooksIsMutable();
+    notebooks_.set(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void addNotebooks(net.metacircular.engpad.proto.v1.NotebookSummary value) {
+    value.getClass();
+  ensureNotebooksIsMutable();
+    notebooks_.add(value);
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void addNotebooks(
+      int index, net.metacircular.engpad.proto.v1.NotebookSummary value) {
+    value.getClass();
+  ensureNotebooksIsMutable();
+    notebooks_.add(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void addAllNotebooks(
+      java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.NotebookSummary> values) {
+    ensureNotebooksIsMutable();
+    com.google.protobuf.AbstractMessageLite.addAll(
+        values, notebooks_);
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void clearNotebooks() {
+    notebooks_ = emptyProtobufList();
+  }
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  private void removeNotebooks(int index) {
+    ensureNotebooksIsMutable();
+    notebooks_.remove(index);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.ListNotebooksResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.ListNotebooksResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.ListNotebooksResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.ListNotebooksResponse)
+      net.metacircular.engpad.proto.v1.ListNotebooksResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.ListNotebooksResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<net.metacircular.engpad.proto.v1.NotebookSummary> getNotebooksList() {
+      return java.util.Collections.unmodifiableList(
+          instance.getNotebooksList());
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    @java.lang.Override
+    public int getNotebooksCount() {
+      return instance.getNotebooksCount();
+    }/**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    @java.lang.Override
+    public net.metacircular.engpad.proto.v1.NotebookSummary getNotebooks(int index) {
+      return instance.getNotebooks(index);
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder setNotebooks(
+        int index, net.metacircular.engpad.proto.v1.NotebookSummary value) {
+      copyOnWrite();
+      instance.setNotebooks(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder setNotebooks(
+        int index, net.metacircular.engpad.proto.v1.NotebookSummary.Builder builderForValue) {
+      copyOnWrite();
+      instance.setNotebooks(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder addNotebooks(net.metacircular.engpad.proto.v1.NotebookSummary value) {
+      copyOnWrite();
+      instance.addNotebooks(value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder addNotebooks(
+        int index, net.metacircular.engpad.proto.v1.NotebookSummary value) {
+      copyOnWrite();
+      instance.addNotebooks(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder addNotebooks(
+        net.metacircular.engpad.proto.v1.NotebookSummary.Builder builderForValue) {
+      copyOnWrite();
+      instance.addNotebooks(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder addNotebooks(
+        int index, net.metacircular.engpad.proto.v1.NotebookSummary.Builder builderForValue) {
+      copyOnWrite();
+      instance.addNotebooks(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder addAllNotebooks(
+        java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.NotebookSummary> values) {
+      copyOnWrite();
+      instance.addAllNotebooks(values);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder clearNotebooks() {
+      copyOnWrite();
+      instance.clearNotebooks();
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    public Builder removeNotebooks(int index) {
+      copyOnWrite();
+      instance.removeNotebooks(index);
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.ListNotebooksResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.ListNotebooksResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "notebooks_",
+            net.metacircular.engpad.proto.v1.NotebookSummary.class,
+          };
+          java.lang.String info =
+              "\u0000\u0001\u0000\u0000\u0001\u0001\u0001\u0000\u0001\u0000\u0001\u001b";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.ListNotebooksResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.ListNotebooksResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.ListNotebooksResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.ListNotebooksResponse)
+  private static final net.metacircular.engpad.proto.v1.ListNotebooksResponse DEFAULT_INSTANCE;
+  static {
+    ListNotebooksResponse defaultInstance = new ListNotebooksResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      ListNotebooksResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListNotebooksResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<ListNotebooksResponse> PARSER;
+
+  public static com.google.protobuf.Parser<ListNotebooksResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksResponseKt.kt

@@ -0,0 +1,99 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializelistNotebooksResponse")
+public inline fun listNotebooksResponse(block: net.metacircular.engpad.proto.v1.ListNotebooksResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListNotebooksResponse =
+  net.metacircular.engpad.proto.v1.ListNotebooksResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.ListNotebooksResponse.newBuilder()).apply { block() }._build()
+public object ListNotebooksResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.ListNotebooksResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.ListNotebooksResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.ListNotebooksResponse = _builder.build()
+
+    /**
+     * An uninstantiable, behaviorless type to represent the field in
+     * generics.
+     */
+    @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+    public class NotebooksProxy private constructor() : com.google.protobuf.kotlin.DslProxy()
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+     public val notebooks: com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>
+      @kotlin.jvm.JvmSynthetic
+      get() = com.google.protobuf.kotlin.DslList(
+        _builder.getNotebooksList()
+      )
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     * @param value The notebooks to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addNotebooks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.add(value: net.metacircular.engpad.proto.v1.NotebookSummary) {
+      _builder.addNotebooks(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     * @param value The notebooks to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignNotebooks")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.plusAssign(value: net.metacircular.engpad.proto.v1.NotebookSummary) {
+      add(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     * @param values The notebooks to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addAllNotebooks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.addAll(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.NotebookSummary>) {
+      _builder.addAllNotebooks(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     * @param values The notebooks to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignAllNotebooks")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.plusAssign(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.NotebookSummary>) {
+      addAll(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     * @param index The index to set the value at.
+     * @param value The notebooks to set.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("setNotebooks")
+    public operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.set(index: kotlin.Int, value: net.metacircular.engpad.proto.v1.NotebookSummary) {
+      _builder.setNotebooks(index, value)
+    }
+    /**
+     * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("clearNotebooks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.NotebookSummary, NotebooksProxy>.clear() {
+      _builder.clearNotebooks()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.ListNotebooksResponse.copy(block: net.metacircular.engpad.proto.v1.ListNotebooksResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListNotebooksResponse =
+  net.metacircular.engpad.proto.v1.ListNotebooksResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListNotebooksResponseOrBuilder.java

@@ -0,0 +1,23 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface ListNotebooksResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.ListNotebooksResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  java.util.List<net.metacircular.engpad.proto.v1.NotebookSummary> 
+      getNotebooksList();
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  net.metacircular.engpad.proto.v1.NotebookSummary getNotebooks(int index);
+  /**
+   * <code>repeated .engpad.v1.NotebookSummary notebooks = 1;</code>
+   */
+  int getNotebooksCount();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksRequest.java

@@ -0,0 +1,238 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.ListShareLinksRequest}
+ */
+public  final class ListShareLinksRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        ListShareLinksRequest, ListShareLinksRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.ListShareLinksRequest)
+    ListShareLinksRequestOrBuilder {
+  private ListShareLinksRequest() {
+  }
+  public static final int NOTEBOOK_ID_FIELD_NUMBER = 1;
+  private long notebookId_;
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  @java.lang.Override
+  public long getNotebookId() {
+    return notebookId_;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @param value The notebookId to set.
+   */
+  private void setNotebookId(long value) {
+    
+    notebookId_ = value;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   */
+  private void clearNotebookId() {
+    
+    notebookId_ = 0L;
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.ListShareLinksRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.ListShareLinksRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.ListShareLinksRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.ListShareLinksRequest)
+      net.metacircular.engpad.proto.v1.ListShareLinksRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.ListShareLinksRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return The notebookId.
+     */
+    @java.lang.Override
+    public long getNotebookId() {
+      return instance.getNotebookId();
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @param value The notebookId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNotebookId(long value) {
+      copyOnWrite();
+      instance.setNotebookId(value);
+      return this;
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNotebookId() {
+      copyOnWrite();
+      instance.clearNotebookId();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.ListShareLinksRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.ListShareLinksRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "notebookId_",
+          };
+          java.lang.String info =
+              "\u0000\u0001\u0000\u0000\u0001\u0001\u0001\u0000\u0000\u0000\u0001\u0002";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.ListShareLinksRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.ListShareLinksRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.ListShareLinksRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.ListShareLinksRequest)
+  private static final net.metacircular.engpad.proto.v1.ListShareLinksRequest DEFAULT_INSTANCE;
+  static {
+    ListShareLinksRequest defaultInstance = new ListShareLinksRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      ListShareLinksRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListShareLinksRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<ListShareLinksRequest> PARSER;
+
+  public static com.google.protobuf.Parser<ListShareLinksRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksRequestKt.kt

@@ -0,0 +1,45 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializelistShareLinksRequest")
+public inline fun listShareLinksRequest(block: net.metacircular.engpad.proto.v1.ListShareLinksRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListShareLinksRequest =
+  net.metacircular.engpad.proto.v1.ListShareLinksRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.ListShareLinksRequest.newBuilder()).apply { block() }._build()
+public object ListShareLinksRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.ListShareLinksRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.ListShareLinksRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.ListShareLinksRequest = _builder.build()
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public var notebookId: kotlin.Long
+      @JvmName("getNotebookId")
+      get() = _builder.getNotebookId()
+      @JvmName("setNotebookId")
+      set(value) {
+        _builder.setNotebookId(value)
+      }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public fun clearNotebookId() {
+      _builder.clearNotebookId()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.ListShareLinksRequest.copy(block: net.metacircular.engpad.proto.v1.ListShareLinksRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListShareLinksRequest =
+  net.metacircular.engpad.proto.v1.ListShareLinksRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksRequestOrBuilder.java

@@ -0,0 +1,15 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface ListShareLinksRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.ListShareLinksRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  long getNotebookId();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksResponse.java

@@ -0,0 +1,382 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.ListShareLinksResponse}
+ */
+public  final class ListShareLinksResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        ListShareLinksResponse, ListShareLinksResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.ListShareLinksResponse)
+    ListShareLinksResponseOrBuilder {
+  private ListShareLinksResponse() {
+    links_ = emptyProtobufList();
+  }
+  public static final int LINKS_FIELD_NUMBER = 1;
+  private com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.ShareLinkInfo> links_;
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<net.metacircular.engpad.proto.v1.ShareLinkInfo> getLinksList() {
+    return links_;
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  public java.util.List<? extends net.metacircular.engpad.proto.v1.ShareLinkInfoOrBuilder> 
+      getLinksOrBuilderList() {
+    return links_;
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  @java.lang.Override
+  public int getLinksCount() {
+    return links_.size();
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  @java.lang.Override
+  public net.metacircular.engpad.proto.v1.ShareLinkInfo getLinks(int index) {
+    return links_.get(index);
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  public net.metacircular.engpad.proto.v1.ShareLinkInfoOrBuilder getLinksOrBuilder(
+      int index) {
+    return links_.get(index);
+  }
+  private void ensureLinksIsMutable() {
+    com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.ShareLinkInfo> tmp = links_;
+    if (!tmp.isModifiable()) {
+      links_ =
+          com.google.protobuf.GeneratedMessageLite.mutableCopy(tmp);
+     }
+  }
+
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void setLinks(
+      int index, net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+    value.getClass();
+  ensureLinksIsMutable();
+    links_.set(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void addLinks(net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+    value.getClass();
+  ensureLinksIsMutable();
+    links_.add(value);
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void addLinks(
+      int index, net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+    value.getClass();
+  ensureLinksIsMutable();
+    links_.add(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void addAllLinks(
+      java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.ShareLinkInfo> values) {
+    ensureLinksIsMutable();
+    com.google.protobuf.AbstractMessageLite.addAll(
+        values, links_);
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void clearLinks() {
+    links_ = emptyProtobufList();
+  }
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  private void removeLinks(int index) {
+    ensureLinksIsMutable();
+    links_.remove(index);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.ListShareLinksResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.ListShareLinksResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.ListShareLinksResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.ListShareLinksResponse)
+      net.metacircular.engpad.proto.v1.ListShareLinksResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.ListShareLinksResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<net.metacircular.engpad.proto.v1.ShareLinkInfo> getLinksList() {
+      return java.util.Collections.unmodifiableList(
+          instance.getLinksList());
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    @java.lang.Override
+    public int getLinksCount() {
+      return instance.getLinksCount();
+    }/**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    @java.lang.Override
+    public net.metacircular.engpad.proto.v1.ShareLinkInfo getLinks(int index) {
+      return instance.getLinks(index);
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder setLinks(
+        int index, net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+      copyOnWrite();
+      instance.setLinks(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder setLinks(
+        int index, net.metacircular.engpad.proto.v1.ShareLinkInfo.Builder builderForValue) {
+      copyOnWrite();
+      instance.setLinks(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder addLinks(net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+      copyOnWrite();
+      instance.addLinks(value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder addLinks(
+        int index, net.metacircular.engpad.proto.v1.ShareLinkInfo value) {
+      copyOnWrite();
+      instance.addLinks(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder addLinks(
+        net.metacircular.engpad.proto.v1.ShareLinkInfo.Builder builderForValue) {
+      copyOnWrite();
+      instance.addLinks(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder addLinks(
+        int index, net.metacircular.engpad.proto.v1.ShareLinkInfo.Builder builderForValue) {
+      copyOnWrite();
+      instance.addLinks(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder addAllLinks(
+        java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.ShareLinkInfo> values) {
+      copyOnWrite();
+      instance.addAllLinks(values);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder clearLinks() {
+      copyOnWrite();
+      instance.clearLinks();
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    public Builder removeLinks(int index) {
+      copyOnWrite();
+      instance.removeLinks(index);
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.ListShareLinksResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.ListShareLinksResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "links_",
+            net.metacircular.engpad.proto.v1.ShareLinkInfo.class,
+          };
+          java.lang.String info =
+              "\u0000\u0001\u0000\u0000\u0001\u0001\u0001\u0000\u0001\u0000\u0001\u001b";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.ListShareLinksResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.ListShareLinksResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.ListShareLinksResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.ListShareLinksResponse)
+  private static final net.metacircular.engpad.proto.v1.ListShareLinksResponse DEFAULT_INSTANCE;
+  static {
+    ListShareLinksResponse defaultInstance = new ListShareLinksResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      ListShareLinksResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ListShareLinksResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<ListShareLinksResponse> PARSER;
+
+  public static com.google.protobuf.Parser<ListShareLinksResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksResponseKt.kt

@@ -0,0 +1,99 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializelistShareLinksResponse")
+public inline fun listShareLinksResponse(block: net.metacircular.engpad.proto.v1.ListShareLinksResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListShareLinksResponse =
+  net.metacircular.engpad.proto.v1.ListShareLinksResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.ListShareLinksResponse.newBuilder()).apply { block() }._build()
+public object ListShareLinksResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.ListShareLinksResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.ListShareLinksResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.ListShareLinksResponse = _builder.build()
+
+    /**
+     * An uninstantiable, behaviorless type to represent the field in
+     * generics.
+     */
+    @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+    public class LinksProxy private constructor() : com.google.protobuf.kotlin.DslProxy()
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+     public val links: com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>
+      @kotlin.jvm.JvmSynthetic
+      get() = com.google.protobuf.kotlin.DslList(
+        _builder.getLinksList()
+      )
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     * @param value The links to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addLinks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.add(value: net.metacircular.engpad.proto.v1.ShareLinkInfo) {
+      _builder.addLinks(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     * @param value The links to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignLinks")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.plusAssign(value: net.metacircular.engpad.proto.v1.ShareLinkInfo) {
+      add(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     * @param values The links to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addAllLinks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.addAll(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.ShareLinkInfo>) {
+      _builder.addAllLinks(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     * @param values The links to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignAllLinks")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.plusAssign(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.ShareLinkInfo>) {
+      addAll(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     * @param index The index to set the value at.
+     * @param value The links to set.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("setLinks")
+    public operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.set(index: kotlin.Int, value: net.metacircular.engpad.proto.v1.ShareLinkInfo) {
+      _builder.setLinks(index, value)
+    }
+    /**
+     * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("clearLinks")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.ShareLinkInfo, LinksProxy>.clear() {
+      _builder.clearLinks()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.ListShareLinksResponse.copy(block: net.metacircular.engpad.proto.v1.ListShareLinksResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ListShareLinksResponse =
+  net.metacircular.engpad.proto.v1.ListShareLinksResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ListShareLinksResponseOrBuilder.java

@@ -0,0 +1,23 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface ListShareLinksResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.ListShareLinksResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  java.util.List<net.metacircular.engpad.proto.v1.ShareLinkInfo> 
+      getLinksList();
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  net.metacircular.engpad.proto.v1.ShareLinkInfo getLinks(int index);
+  /**
+   * <code>repeated .engpad.v1.ShareLinkInfo links = 1;</code>
+   */
+  int getLinksCount();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/NotebookSummary.java

@@ -0,0 +1,639 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.NotebookSummary}
+ */
+public  final class NotebookSummary extends
+    com.google.protobuf.GeneratedMessageLite<
+        NotebookSummary, NotebookSummary.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.NotebookSummary)
+    NotebookSummaryOrBuilder {
+  private NotebookSummary() {
+    title_ = "";
+    pageSize_ = "";
+  }
+  public static final int SERVER_ID_FIELD_NUMBER = 1;
+  private long serverId_;
+  /**
+   * <code>int64 server_id = 1;</code>
+   * @return The serverId.
+   */
+  @java.lang.Override
+  public long getServerId() {
+    return serverId_;
+  }
+  /**
+   * <code>int64 server_id = 1;</code>
+   * @param value The serverId to set.
+   */
+  private void setServerId(long value) {
+    
+    serverId_ = value;
+  }
+  /**
+   * <code>int64 server_id = 1;</code>
+   */
+  private void clearServerId() {
+    
+    serverId_ = 0L;
+  }
+
+  public static final int REMOTE_ID_FIELD_NUMBER = 2;
+  private long remoteId_;
+  /**
+   * <code>int64 remote_id = 2;</code>
+   * @return The remoteId.
+   */
+  @java.lang.Override
+  public long getRemoteId() {
+    return remoteId_;
+  }
+  /**
+   * <code>int64 remote_id = 2;</code>
+   * @param value The remoteId to set.
+   */
+  private void setRemoteId(long value) {
+    
+    remoteId_ = value;
+  }
+  /**
+   * <code>int64 remote_id = 2;</code>
+   */
+  private void clearRemoteId() {
+    
+    remoteId_ = 0L;
+  }
+
+  public static final int TITLE_FIELD_NUMBER = 3;
+  private java.lang.String title_;
+  /**
+   * <code>string title = 3;</code>
+   * @return The title.
+   */
+  @java.lang.Override
+  public java.lang.String getTitle() {
+    return title_;
+  }
+  /**
+   * <code>string title = 3;</code>
+   * @return The bytes for title.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTitleBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(title_);
+  }
+  /**
+   * <code>string title = 3;</code>
+   * @param value The title to set.
+   */
+  private void setTitle(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    title_ = value;
+  }
+  /**
+   * <code>string title = 3;</code>
+   */
+  private void clearTitle() {
+    
+    title_ = getDefaultInstance().getTitle();
+  }
+  /**
+   * <code>string title = 3;</code>
+   * @param value The bytes for title to set.
+   */
+  private void setTitleBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    title_ = value.toStringUtf8();
+    
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 4;
+  private java.lang.String pageSize_;
+  /**
+   * <code>string page_size = 4;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public java.lang.String getPageSize() {
+    return pageSize_;
+  }
+  /**
+   * <code>string page_size = 4;</code>
+   * @return The bytes for pageSize.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getPageSizeBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(pageSize_);
+  }
+  /**
+   * <code>string page_size = 4;</code>
+   * @param value The pageSize to set.
+   */
+  private void setPageSize(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    pageSize_ = value;
+  }
+  /**
+   * <code>string page_size = 4;</code>
+   */
+  private void clearPageSize() {
+    
+    pageSize_ = getDefaultInstance().getPageSize();
+  }
+  /**
+   * <code>string page_size = 4;</code>
+   * @param value The bytes for pageSize to set.
+   */
+  private void setPageSizeBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    pageSize_ = value.toStringUtf8();
+    
+  }
+
+  public static final int PAGE_COUNT_FIELD_NUMBER = 5;
+  private int pageCount_;
+  /**
+   * <code>int32 page_count = 5;</code>
+   * @return The pageCount.
+   */
+  @java.lang.Override
+  public int getPageCount() {
+    return pageCount_;
+  }
+  /**
+   * <code>int32 page_count = 5;</code>
+   * @param value The pageCount to set.
+   */
+  private void setPageCount(int value) {
+    
+    pageCount_ = value;
+  }
+  /**
+   * <code>int32 page_count = 5;</code>
+   */
+  private void clearPageCount() {
+    
+    pageCount_ = 0;
+  }
+
+  public static final int SYNCED_AT_FIELD_NUMBER = 6;
+  private com.google.protobuf.Timestamp syncedAt_;
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   */
+  @java.lang.Override
+  public boolean hasSyncedAt() {
+    return syncedAt_ != null;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getSyncedAt() {
+    return syncedAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : syncedAt_;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   */
+  private void setSyncedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  syncedAt_ = value;
+    
+    }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   */
+  @java.lang.SuppressWarnings({"ReferenceEquality"})
+  private void mergeSyncedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  if (syncedAt_ != null &&
+        syncedAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+      syncedAt_ =
+        com.google.protobuf.Timestamp.newBuilder(syncedAt_).mergeFrom(value).buildPartial();
+    } else {
+      syncedAt_ = value;
+    }
+    
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   */
+  private void clearSyncedAt() {  syncedAt_ = null;
+    
+  }
+
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.NotebookSummary parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.NotebookSummary prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.NotebookSummary}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.NotebookSummary, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.NotebookSummary)
+      net.metacircular.engpad.proto.v1.NotebookSummaryOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.NotebookSummary.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 server_id = 1;</code>
+     * @return The serverId.
+     */
+    @java.lang.Override
+    public long getServerId() {
+      return instance.getServerId();
+    }
+    /**
+     * <code>int64 server_id = 1;</code>
+     * @param value The serverId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setServerId(long value) {
+      copyOnWrite();
+      instance.setServerId(value);
+      return this;
+    }
+    /**
+     * <code>int64 server_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearServerId() {
+      copyOnWrite();
+      instance.clearServerId();
+      return this;
+    }
+
+    /**
+     * <code>int64 remote_id = 2;</code>
+     * @return The remoteId.
+     */
+    @java.lang.Override
+    public long getRemoteId() {
+      return instance.getRemoteId();
+    }
+    /**
+     * <code>int64 remote_id = 2;</code>
+     * @param value The remoteId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRemoteId(long value) {
+      copyOnWrite();
+      instance.setRemoteId(value);
+      return this;
+    }
+    /**
+     * <code>int64 remote_id = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearRemoteId() {
+      copyOnWrite();
+      instance.clearRemoteId();
+      return this;
+    }
+
+    /**
+     * <code>string title = 3;</code>
+     * @return The title.
+     */
+    @java.lang.Override
+    public java.lang.String getTitle() {
+      return instance.getTitle();
+    }
+    /**
+     * <code>string title = 3;</code>
+     * @return The bytes for title.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTitleBytes() {
+      return instance.getTitleBytes();
+    }
+    /**
+     * <code>string title = 3;</code>
+     * @param value The title to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTitle(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setTitle(value);
+      return this;
+    }
+    /**
+     * <code>string title = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTitle() {
+      copyOnWrite();
+      instance.clearTitle();
+      return this;
+    }
+    /**
+     * <code>string title = 3;</code>
+     * @param value The bytes for title to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTitleBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setTitleBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>string page_size = 4;</code>
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public java.lang.String getPageSize() {
+      return instance.getPageSize();
+    }
+    /**
+     * <code>string page_size = 4;</code>
+     * @return The bytes for pageSize.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getPageSizeBytes() {
+      return instance.getPageSizeBytes();
+    }
+    /**
+     * <code>string page_size = 4;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setPageSize(value);
+      return this;
+    }
+    /**
+     * <code>string page_size = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      copyOnWrite();
+      instance.clearPageSize();
+      return this;
+    }
+    /**
+     * <code>string page_size = 4;</code>
+     * @param value The bytes for pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSizeBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setPageSizeBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>int32 page_count = 5;</code>
+     * @return The pageCount.
+     */
+    @java.lang.Override
+    public int getPageCount() {
+      return instance.getPageCount();
+    }
+    /**
+     * <code>int32 page_count = 5;</code>
+     * @param value The pageCount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageCount(int value) {
+      copyOnWrite();
+      instance.setPageCount(value);
+      return this;
+    }
+    /**
+     * <code>int32 page_count = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageCount() {
+      copyOnWrite();
+      instance.clearPageCount();
+      return this;
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    @java.lang.Override
+    public boolean hasSyncedAt() {
+      return instance.hasSyncedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getSyncedAt() {
+      return instance.getSyncedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public Builder setSyncedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.setSyncedAt(value);
+      return this;
+      }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public Builder setSyncedAt(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      copyOnWrite();
+      instance.setSyncedAt(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public Builder mergeSyncedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.mergeSyncedAt(value);
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public Builder clearSyncedAt() {  copyOnWrite();
+      instance.clearSyncedAt();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.NotebookSummary)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.NotebookSummary();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "serverId_",
+            "remoteId_",
+            "title_",
+            "pageSize_",
+            "pageCount_",
+            "syncedAt_",
+          };
+          java.lang.String info =
+              "\u0000\u0006\u0000\u0000\u0001\u0006\u0006\u0000\u0000\u0000\u0001\u0002\u0002\u0002" +
+              "\u0003\u0208\u0004\u0208\u0005\u0004\u0006\t";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.NotebookSummary> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.NotebookSummary.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.NotebookSummary>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.NotebookSummary)
+  private static final net.metacircular.engpad.proto.v1.NotebookSummary DEFAULT_INSTANCE;
+  static {
+    NotebookSummary defaultInstance = new NotebookSummary();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      NotebookSummary.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.NotebookSummary getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<NotebookSummary> PARSER;
+
+  public static com.google.protobuf.Parser<NotebookSummary> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/NotebookSummaryKt.kt

@@ -0,0 +1,140 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializenotebookSummary")
+public inline fun notebookSummary(block: net.metacircular.engpad.proto.v1.NotebookSummaryKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.NotebookSummary =
+  net.metacircular.engpad.proto.v1.NotebookSummaryKt.Dsl._create(net.metacircular.engpad.proto.v1.NotebookSummary.newBuilder()).apply { block() }._build()
+public object NotebookSummaryKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.NotebookSummary.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.NotebookSummary.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.NotebookSummary = _builder.build()
+
+    /**
+     * <code>int64 server_id = 1;</code>
+     */
+    public var serverId: kotlin.Long
+      @JvmName("getServerId")
+      get() = _builder.getServerId()
+      @JvmName("setServerId")
+      set(value) {
+        _builder.setServerId(value)
+      }
+    /**
+     * <code>int64 server_id = 1;</code>
+     */
+    public fun clearServerId() {
+      _builder.clearServerId()
+    }
+
+    /**
+     * <code>int64 remote_id = 2;</code>
+     */
+    public var remoteId: kotlin.Long
+      @JvmName("getRemoteId")
+      get() = _builder.getRemoteId()
+      @JvmName("setRemoteId")
+      set(value) {
+        _builder.setRemoteId(value)
+      }
+    /**
+     * <code>int64 remote_id = 2;</code>
+     */
+    public fun clearRemoteId() {
+      _builder.clearRemoteId()
+    }
+
+    /**
+     * <code>string title = 3;</code>
+     */
+    public var title: kotlin.String
+      @JvmName("getTitle")
+      get() = _builder.getTitle()
+      @JvmName("setTitle")
+      set(value) {
+        _builder.setTitle(value)
+      }
+    /**
+     * <code>string title = 3;</code>
+     */
+    public fun clearTitle() {
+      _builder.clearTitle()
+    }
+
+    /**
+     * <code>string page_size = 4;</code>
+     */
+    public var pageSize: kotlin.String
+      @JvmName("getPageSize")
+      get() = _builder.getPageSize()
+      @JvmName("setPageSize")
+      set(value) {
+        _builder.setPageSize(value)
+      }
+    /**
+     * <code>string page_size = 4;</code>
+     */
+    public fun clearPageSize() {
+      _builder.clearPageSize()
+    }
+
+    /**
+     * <code>int32 page_count = 5;</code>
+     */
+    public var pageCount: kotlin.Int
+      @JvmName("getPageCount")
+      get() = _builder.getPageCount()
+      @JvmName("setPageCount")
+      set(value) {
+        _builder.setPageCount(value)
+      }
+    /**
+     * <code>int32 page_count = 5;</code>
+     */
+    public fun clearPageCount() {
+      _builder.clearPageCount()
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public var syncedAt: com.google.protobuf.Timestamp
+      @JvmName("getSyncedAt")
+      get() = _builder.getSyncedAt()
+      @JvmName("setSyncedAt")
+      set(value) {
+        _builder.setSyncedAt(value)
+      }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     */
+    public fun clearSyncedAt() {
+      _builder.clearSyncedAt()
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+     * @return Whether the syncedAt field is set.
+     */
+    public fun hasSyncedAt(): kotlin.Boolean {
+      return _builder.hasSyncedAt()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.NotebookSummary.copy(block: net.metacircular.engpad.proto.v1.NotebookSummaryKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.NotebookSummary =
+  net.metacircular.engpad.proto.v1.NotebookSummaryKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+
+val net.metacircular.engpad.proto.v1.NotebookSummaryOrBuilder.syncedAtOrNull: com.google.protobuf.Timestamp?
+  get() = if (hasSyncedAt()) getSyncedAt() else null
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/NotebookSummaryOrBuilder.java

@@ -0,0 +1,62 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface NotebookSummaryOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.NotebookSummary)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 server_id = 1;</code>
+   * @return The serverId.
+   */
+  long getServerId();
+
+  /**
+   * <code>int64 remote_id = 2;</code>
+   * @return The remoteId.
+   */
+  long getRemoteId();
+
+  /**
+   * <code>string title = 3;</code>
+   * @return The title.
+   */
+  java.lang.String getTitle();
+  /**
+   * <code>string title = 3;</code>
+   * @return The bytes for title.
+   */
+  com.google.protobuf.ByteString
+      getTitleBytes();
+
+  /**
+   * <code>string page_size = 4;</code>
+   * @return The pageSize.
+   */
+  java.lang.String getPageSize();
+  /**
+   * <code>string page_size = 4;</code>
+   * @return The bytes for pageSize.
+   */
+  com.google.protobuf.ByteString
+      getPageSizeBytes();
+
+  /**
+   * <code>int32 page_count = 5;</code>
+   * @return The pageCount.
+   */
+  int getPageCount();
+
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   * @return Whether the syncedAt field is set.
+   */
+  boolean hasSyncedAt();
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 6;</code>
+   * @return The syncedAt.
+   */
+  com.google.protobuf.Timestamp getSyncedAt();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/PageData.java

@@ -0,0 +1,493 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.PageData}
+ */
+public  final class PageData extends
+    com.google.protobuf.GeneratedMessageLite<
+        PageData, PageData.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.PageData)
+    PageDataOrBuilder {
+  private PageData() {
+    strokes_ = emptyProtobufList();
+  }
+  public static final int PAGE_ID_FIELD_NUMBER = 1;
+  private long pageId_;
+  /**
+   * <code>int64 page_id = 1;</code>
+   * @return The pageId.
+   */
+  @java.lang.Override
+  public long getPageId() {
+    return pageId_;
+  }
+  /**
+   * <code>int64 page_id = 1;</code>
+   * @param value The pageId to set.
+   */
+  private void setPageId(long value) {
+    
+    pageId_ = value;
+  }
+  /**
+   * <code>int64 page_id = 1;</code>
+   */
+  private void clearPageId() {
+    
+    pageId_ = 0L;
+  }
+
+  public static final int PAGE_NUMBER_FIELD_NUMBER = 2;
+  private int pageNumber_;
+  /**
+   * <code>int32 page_number = 2;</code>
+   * @return The pageNumber.
+   */
+  @java.lang.Override
+  public int getPageNumber() {
+    return pageNumber_;
+  }
+  /**
+   * <code>int32 page_number = 2;</code>
+   * @param value The pageNumber to set.
+   */
+  private void setPageNumber(int value) {
+    
+    pageNumber_ = value;
+  }
+  /**
+   * <code>int32 page_number = 2;</code>
+   */
+  private void clearPageNumber() {
+    
+    pageNumber_ = 0;
+  }
+
+  public static final int STROKES_FIELD_NUMBER = 3;
+  private com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.StrokeData> strokes_;
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  @java.lang.Override
+  public java.util.List<net.metacircular.engpad.proto.v1.StrokeData> getStrokesList() {
+    return strokes_;
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  public java.util.List<? extends net.metacircular.engpad.proto.v1.StrokeDataOrBuilder> 
+      getStrokesOrBuilderList() {
+    return strokes_;
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  @java.lang.Override
+  public int getStrokesCount() {
+    return strokes_.size();
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  @java.lang.Override
+  public net.metacircular.engpad.proto.v1.StrokeData getStrokes(int index) {
+    return strokes_.get(index);
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  public net.metacircular.engpad.proto.v1.StrokeDataOrBuilder getStrokesOrBuilder(
+      int index) {
+    return strokes_.get(index);
+  }
+  private void ensureStrokesIsMutable() {
+    com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.StrokeData> tmp = strokes_;
+    if (!tmp.isModifiable()) {
+      strokes_ =
+          com.google.protobuf.GeneratedMessageLite.mutableCopy(tmp);
+     }
+  }
+
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void setStrokes(
+      int index, net.metacircular.engpad.proto.v1.StrokeData value) {
+    value.getClass();
+  ensureStrokesIsMutable();
+    strokes_.set(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void addStrokes(net.metacircular.engpad.proto.v1.StrokeData value) {
+    value.getClass();
+  ensureStrokesIsMutable();
+    strokes_.add(value);
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void addStrokes(
+      int index, net.metacircular.engpad.proto.v1.StrokeData value) {
+    value.getClass();
+  ensureStrokesIsMutable();
+    strokes_.add(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void addAllStrokes(
+      java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.StrokeData> values) {
+    ensureStrokesIsMutable();
+    com.google.protobuf.AbstractMessageLite.addAll(
+        values, strokes_);
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void clearStrokes() {
+    strokes_ = emptyProtobufList();
+  }
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  private void removeStrokes(int index) {
+    ensureStrokesIsMutable();
+    strokes_.remove(index);
+  }
+
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.PageData parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.PageData prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.PageData}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.PageData, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.PageData)
+      net.metacircular.engpad.proto.v1.PageDataOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.PageData.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 page_id = 1;</code>
+     * @return The pageId.
+     */
+    @java.lang.Override
+    public long getPageId() {
+      return instance.getPageId();
+    }
+    /**
+     * <code>int64 page_id = 1;</code>
+     * @param value The pageId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageId(long value) {
+      copyOnWrite();
+      instance.setPageId(value);
+      return this;
+    }
+    /**
+     * <code>int64 page_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageId() {
+      copyOnWrite();
+      instance.clearPageId();
+      return this;
+    }
+
+    /**
+     * <code>int32 page_number = 2;</code>
+     * @return The pageNumber.
+     */
+    @java.lang.Override
+    public int getPageNumber() {
+      return instance.getPageNumber();
+    }
+    /**
+     * <code>int32 page_number = 2;</code>
+     * @param value The pageNumber to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageNumber(int value) {
+      copyOnWrite();
+      instance.setPageNumber(value);
+      return this;
+    }
+    /**
+     * <code>int32 page_number = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageNumber() {
+      copyOnWrite();
+      instance.clearPageNumber();
+      return this;
+    }
+
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    @java.lang.Override
+    public java.util.List<net.metacircular.engpad.proto.v1.StrokeData> getStrokesList() {
+      return java.util.Collections.unmodifiableList(
+          instance.getStrokesList());
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    @java.lang.Override
+    public int getStrokesCount() {
+      return instance.getStrokesCount();
+    }/**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    @java.lang.Override
+    public net.metacircular.engpad.proto.v1.StrokeData getStrokes(int index) {
+      return instance.getStrokes(index);
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder setStrokes(
+        int index, net.metacircular.engpad.proto.v1.StrokeData value) {
+      copyOnWrite();
+      instance.setStrokes(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder setStrokes(
+        int index, net.metacircular.engpad.proto.v1.StrokeData.Builder builderForValue) {
+      copyOnWrite();
+      instance.setStrokes(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder addStrokes(net.metacircular.engpad.proto.v1.StrokeData value) {
+      copyOnWrite();
+      instance.addStrokes(value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder addStrokes(
+        int index, net.metacircular.engpad.proto.v1.StrokeData value) {
+      copyOnWrite();
+      instance.addStrokes(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder addStrokes(
+        net.metacircular.engpad.proto.v1.StrokeData.Builder builderForValue) {
+      copyOnWrite();
+      instance.addStrokes(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder addStrokes(
+        int index, net.metacircular.engpad.proto.v1.StrokeData.Builder builderForValue) {
+      copyOnWrite();
+      instance.addStrokes(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder addAllStrokes(
+        java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.StrokeData> values) {
+      copyOnWrite();
+      instance.addAllStrokes(values);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder clearStrokes() {
+      copyOnWrite();
+      instance.clearStrokes();
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    public Builder removeStrokes(int index) {
+      copyOnWrite();
+      instance.removeStrokes(index);
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.PageData)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.PageData();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "pageId_",
+            "pageNumber_",
+            "strokes_",
+            net.metacircular.engpad.proto.v1.StrokeData.class,
+          };
+          java.lang.String info =
+              "\u0000\u0003\u0000\u0000\u0001\u0003\u0003\u0000\u0001\u0000\u0001\u0002\u0002\u0004" +
+              "\u0003\u001b";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.PageData> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.PageData.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.PageData>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.PageData)
+  private static final net.metacircular.engpad.proto.v1.PageData DEFAULT_INSTANCE;
+  static {
+    PageData defaultInstance = new PageData();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      PageData.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.PageData getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<PageData> PARSER;
+
+  public static com.google.protobuf.Parser<PageData> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/PageDataKt.kt

@@ -0,0 +1,133 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializepageData")
+public inline fun pageData(block: net.metacircular.engpad.proto.v1.PageDataKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.PageData =
+  net.metacircular.engpad.proto.v1.PageDataKt.Dsl._create(net.metacircular.engpad.proto.v1.PageData.newBuilder()).apply { block() }._build()
+public object PageDataKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.PageData.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.PageData.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.PageData = _builder.build()
+
+    /**
+     * <code>int64 page_id = 1;</code>
+     */
+    public var pageId: kotlin.Long
+      @JvmName("getPageId")
+      get() = _builder.getPageId()
+      @JvmName("setPageId")
+      set(value) {
+        _builder.setPageId(value)
+      }
+    /**
+     * <code>int64 page_id = 1;</code>
+     */
+    public fun clearPageId() {
+      _builder.clearPageId()
+    }
+
+    /**
+     * <code>int32 page_number = 2;</code>
+     */
+    public var pageNumber: kotlin.Int
+      @JvmName("getPageNumber")
+      get() = _builder.getPageNumber()
+      @JvmName("setPageNumber")
+      set(value) {
+        _builder.setPageNumber(value)
+      }
+    /**
+     * <code>int32 page_number = 2;</code>
+     */
+    public fun clearPageNumber() {
+      _builder.clearPageNumber()
+    }
+
+    /**
+     * An uninstantiable, behaviorless type to represent the field in
+     * generics.
+     */
+    @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+    public class StrokesProxy private constructor() : com.google.protobuf.kotlin.DslProxy()
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+     public val strokes: com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>
+      @kotlin.jvm.JvmSynthetic
+      get() = com.google.protobuf.kotlin.DslList(
+        _builder.getStrokesList()
+      )
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     * @param value The strokes to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addStrokes")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.add(value: net.metacircular.engpad.proto.v1.StrokeData) {
+      _builder.addStrokes(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     * @param value The strokes to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignStrokes")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.plusAssign(value: net.metacircular.engpad.proto.v1.StrokeData) {
+      add(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     * @param values The strokes to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addAllStrokes")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.addAll(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.StrokeData>) {
+      _builder.addAllStrokes(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     * @param values The strokes to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignAllStrokes")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.plusAssign(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.StrokeData>) {
+      addAll(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The strokes to set.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("setStrokes")
+    public operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.set(index: kotlin.Int, value: net.metacircular.engpad.proto.v1.StrokeData) {
+      _builder.setStrokes(index, value)
+    }
+    /**
+     * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("clearStrokes")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.StrokeData, StrokesProxy>.clear() {
+      _builder.clearStrokes()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.PageData.copy(block: net.metacircular.engpad.proto.v1.PageDataKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.PageData =
+  net.metacircular.engpad.proto.v1.PageDataKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/PageDataOrBuilder.java

@@ -0,0 +1,35 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface PageDataOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.PageData)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 page_id = 1;</code>
+   * @return The pageId.
+   */
+  long getPageId();
+
+  /**
+   * <code>int32 page_number = 2;</code>
+   * @return The pageNumber.
+   */
+  int getPageNumber();
+
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  java.util.List<net.metacircular.engpad.proto.v1.StrokeData> 
+      getStrokesList();
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  net.metacircular.engpad.proto.v1.StrokeData getStrokes(int index);
+  /**
+   * <code>repeated .engpad.v1.StrokeData strokes = 3;</code>
+   */
+  int getStrokesCount();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkRequest.java

@@ -0,0 +1,281 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.RevokeShareLinkRequest}
+ */
+public  final class RevokeShareLinkRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        RevokeShareLinkRequest, RevokeShareLinkRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.RevokeShareLinkRequest)
+    RevokeShareLinkRequestOrBuilder {
+  private RevokeShareLinkRequest() {
+    token_ = "";
+  }
+  public static final int TOKEN_FIELD_NUMBER = 1;
+  private java.lang.String token_;
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  @java.lang.Override
+  public java.lang.String getToken() {
+    return token_;
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTokenBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(token_);
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The token to set.
+   */
+  private void setToken(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    token_ = value;
+  }
+  /**
+   * <code>string token = 1;</code>
+   */
+  private void clearToken() {
+    
+    token_ = getDefaultInstance().getToken();
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The bytes for token to set.
+   */
+  private void setTokenBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    token_ = value.toStringUtf8();
+    
+  }
+
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.RevokeShareLinkRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.RevokeShareLinkRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.RevokeShareLinkRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.RevokeShareLinkRequest)
+      net.metacircular.engpad.proto.v1.RevokeShareLinkRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>string token = 1;</code>
+     * @return The token.
+     */
+    @java.lang.Override
+    public java.lang.String getToken() {
+      return instance.getToken();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return The bytes for token.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTokenBytes() {
+      return instance.getTokenBytes();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setToken(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setToken(value);
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearToken() {
+      copyOnWrite();
+      instance.clearToken();
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The bytes for token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTokenBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setTokenBytes(value);
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.RevokeShareLinkRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.RevokeShareLinkRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "token_",
+          };
+          java.lang.String info =
+              "\u0000\u0001\u0000\u0000\u0001\u0001\u0001\u0000\u0000\u0000\u0001\u0208";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.RevokeShareLinkRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.RevokeShareLinkRequest)
+  private static final net.metacircular.engpad.proto.v1.RevokeShareLinkRequest DEFAULT_INSTANCE;
+  static {
+    RevokeShareLinkRequest defaultInstance = new RevokeShareLinkRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      RevokeShareLinkRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<RevokeShareLinkRequest> PARSER;
+
+  public static com.google.protobuf.Parser<RevokeShareLinkRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkRequestKt.kt

@@ -0,0 +1,45 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializerevokeShareLinkRequest")
+public inline fun revokeShareLinkRequest(block: net.metacircular.engpad.proto.v1.RevokeShareLinkRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.RevokeShareLinkRequest =
+  net.metacircular.engpad.proto.v1.RevokeShareLinkRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.newBuilder()).apply { block() }._build()
+public object RevokeShareLinkRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.RevokeShareLinkRequest = _builder.build()
+
+    /**
+     * <code>string token = 1;</code>
+     */
+    public var token: kotlin.String
+      @JvmName("getToken")
+      get() = _builder.getToken()
+      @JvmName("setToken")
+      set(value) {
+        _builder.setToken(value)
+      }
+    /**
+     * <code>string token = 1;</code>
+     */
+    public fun clearToken() {
+      _builder.clearToken()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.RevokeShareLinkRequest.copy(block: net.metacircular.engpad.proto.v1.RevokeShareLinkRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.RevokeShareLinkRequest =
+  net.metacircular.engpad.proto.v1.RevokeShareLinkRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkRequestOrBuilder.java

@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface RevokeShareLinkRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.RevokeShareLinkRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  java.lang.String getToken();
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  com.google.protobuf.ByteString
+      getTokenBytes();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkResponse.java

@@ -0,0 +1,181 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.RevokeShareLinkResponse}
+ */
+public  final class RevokeShareLinkResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        RevokeShareLinkResponse, RevokeShareLinkResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.RevokeShareLinkResponse)
+    RevokeShareLinkResponseOrBuilder {
+  private RevokeShareLinkResponse() {
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.RevokeShareLinkResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.RevokeShareLinkResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.RevokeShareLinkResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.RevokeShareLinkResponse)
+      net.metacircular.engpad.proto.v1.RevokeShareLinkResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.RevokeShareLinkResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.RevokeShareLinkResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = null;java.lang.String info =
+              "\u0000\u0000";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.RevokeShareLinkResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.RevokeShareLinkResponse)
+  private static final net.metacircular.engpad.proto.v1.RevokeShareLinkResponse DEFAULT_INSTANCE;
+  static {
+    RevokeShareLinkResponse defaultInstance = new RevokeShareLinkResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      RevokeShareLinkResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.RevokeShareLinkResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<RevokeShareLinkResponse> PARSER;
+
+  public static com.google.protobuf.Parser<RevokeShareLinkResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkResponseKt.kt

@@ -0,0 +1,28 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializerevokeShareLinkResponse")
+public inline fun revokeShareLinkResponse(block: net.metacircular.engpad.proto.v1.RevokeShareLinkResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.RevokeShareLinkResponse =
+  net.metacircular.engpad.proto.v1.RevokeShareLinkResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.newBuilder()).apply { block() }._build()
+public object RevokeShareLinkResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.RevokeShareLinkResponse = _builder.build()
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.RevokeShareLinkResponse.copy(block: net.metacircular.engpad.proto.v1.RevokeShareLinkResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.RevokeShareLinkResponse =
+  net.metacircular.engpad.proto.v1.RevokeShareLinkResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/RevokeShareLinkResponseOrBuilder.java

@@ -0,0 +1,9 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface RevokeShareLinkResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.RevokeShareLinkResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ShareLinkInfo.java

@@ -0,0 +1,568 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.ShareLinkInfo}
+ */
+public  final class ShareLinkInfo extends
+    com.google.protobuf.GeneratedMessageLite<
+        ShareLinkInfo, ShareLinkInfo.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.ShareLinkInfo)
+    ShareLinkInfoOrBuilder {
+  private ShareLinkInfo() {
+    token_ = "";
+    url_ = "";
+  }
+  public static final int TOKEN_FIELD_NUMBER = 1;
+  private java.lang.String token_;
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  @java.lang.Override
+  public java.lang.String getToken() {
+    return token_;
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTokenBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(token_);
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The token to set.
+   */
+  private void setToken(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    token_ = value;
+  }
+  /**
+   * <code>string token = 1;</code>
+   */
+  private void clearToken() {
+    
+    token_ = getDefaultInstance().getToken();
+  }
+  /**
+   * <code>string token = 1;</code>
+   * @param value The bytes for token to set.
+   */
+  private void setTokenBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    token_ = value.toStringUtf8();
+    
+  }
+
+  public static final int URL_FIELD_NUMBER = 2;
+  private java.lang.String url_;
+  /**
+   * <code>string url = 2;</code>
+   * @return The url.
+   */
+  @java.lang.Override
+  public java.lang.String getUrl() {
+    return url_;
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @return The bytes for url.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getUrlBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(url_);
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @param value The url to set.
+   */
+  private void setUrl(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    url_ = value;
+  }
+  /**
+   * <code>string url = 2;</code>
+   */
+  private void clearUrl() {
+    
+    url_ = getDefaultInstance().getUrl();
+  }
+  /**
+   * <code>string url = 2;</code>
+   * @param value The bytes for url to set.
+   */
+  private void setUrlBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    url_ = value.toStringUtf8();
+    
+  }
+
+  public static final int CREATED_AT_FIELD_NUMBER = 3;
+  private com.google.protobuf.Timestamp createdAt_;
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   */
+  @java.lang.Override
+  public boolean hasCreatedAt() {
+    return createdAt_ != null;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreatedAt() {
+    return createdAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createdAt_;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   */
+  private void setCreatedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  createdAt_ = value;
+    
+    }
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   */
+  @java.lang.SuppressWarnings({"ReferenceEquality"})
+  private void mergeCreatedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  if (createdAt_ != null &&
+        createdAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+      createdAt_ =
+        com.google.protobuf.Timestamp.newBuilder(createdAt_).mergeFrom(value).buildPartial();
+    } else {
+      createdAt_ = value;
+    }
+    
+  }
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   */
+  private void clearCreatedAt() {  createdAt_ = null;
+    
+  }
+
+  public static final int EXPIRES_AT_FIELD_NUMBER = 4;
+  private com.google.protobuf.Timestamp expiresAt_;
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   */
+  @java.lang.Override
+  public boolean hasExpiresAt() {
+    return expiresAt_ != null;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getExpiresAt() {
+    return expiresAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : expiresAt_;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   */
+  private void setExpiresAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  expiresAt_ = value;
+    
+    }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   */
+  @java.lang.SuppressWarnings({"ReferenceEquality"})
+  private void mergeExpiresAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  if (expiresAt_ != null &&
+        expiresAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+      expiresAt_ =
+        com.google.protobuf.Timestamp.newBuilder(expiresAt_).mergeFrom(value).buildPartial();
+    } else {
+      expiresAt_ = value;
+    }
+    
+  }
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   */
+  private void clearExpiresAt() {  expiresAt_ = null;
+    
+  }
+
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.ShareLinkInfo prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.ShareLinkInfo}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.ShareLinkInfo, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.ShareLinkInfo)
+      net.metacircular.engpad.proto.v1.ShareLinkInfoOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.ShareLinkInfo.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>string token = 1;</code>
+     * @return The token.
+     */
+    @java.lang.Override
+    public java.lang.String getToken() {
+      return instance.getToken();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return The bytes for token.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTokenBytes() {
+      return instance.getTokenBytes();
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setToken(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setToken(value);
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearToken() {
+      copyOnWrite();
+      instance.clearToken();
+      return this;
+    }
+    /**
+     * <code>string token = 1;</code>
+     * @param value The bytes for token to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTokenBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setTokenBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>string url = 2;</code>
+     * @return The url.
+     */
+    @java.lang.Override
+    public java.lang.String getUrl() {
+      return instance.getUrl();
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @return The bytes for url.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getUrlBytes() {
+      return instance.getUrlBytes();
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @param value The url to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUrl(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setUrl(value);
+      return this;
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUrl() {
+      copyOnWrite();
+      instance.clearUrl();
+      return this;
+    }
+    /**
+     * <code>string url = 2;</code>
+     * @param value The bytes for url to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUrlBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setUrlBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    @java.lang.Override
+    public boolean hasCreatedAt() {
+      return instance.hasCreatedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getCreatedAt() {
+      return instance.getCreatedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public Builder setCreatedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.setCreatedAt(value);
+      return this;
+      }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public Builder setCreatedAt(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      copyOnWrite();
+      instance.setCreatedAt(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public Builder mergeCreatedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.mergeCreatedAt(value);
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public Builder clearCreatedAt() {  copyOnWrite();
+      instance.clearCreatedAt();
+      return this;
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    @java.lang.Override
+    public boolean hasExpiresAt() {
+      return instance.hasExpiresAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getExpiresAt() {
+      return instance.getExpiresAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public Builder setExpiresAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.setExpiresAt(value);
+      return this;
+      }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public Builder setExpiresAt(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      copyOnWrite();
+      instance.setExpiresAt(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public Builder mergeExpiresAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.mergeExpiresAt(value);
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public Builder clearExpiresAt() {  copyOnWrite();
+      instance.clearExpiresAt();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.ShareLinkInfo)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.ShareLinkInfo();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "token_",
+            "url_",
+            "createdAt_",
+            "expiresAt_",
+          };
+          java.lang.String info =
+              "\u0000\u0004\u0000\u0000\u0001\u0004\u0004\u0000\u0000\u0000\u0001\u0208\u0002\u0208" +
+              "\u0003\t\u0004\t";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.ShareLinkInfo> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.ShareLinkInfo.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.ShareLinkInfo>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.ShareLinkInfo)
+  private static final net.metacircular.engpad.proto.v1.ShareLinkInfo DEFAULT_INSTANCE;
+  static {
+    ShareLinkInfo defaultInstance = new ShareLinkInfo();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      ShareLinkInfo.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.ShareLinkInfo getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<ShareLinkInfo> PARSER;
+
+  public static com.google.protobuf.Parser<ShareLinkInfo> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ShareLinkInfoKt.kt

@@ -0,0 +1,116 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializeshareLinkInfo")
+public inline fun shareLinkInfo(block: net.metacircular.engpad.proto.v1.ShareLinkInfoKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ShareLinkInfo =
+  net.metacircular.engpad.proto.v1.ShareLinkInfoKt.Dsl._create(net.metacircular.engpad.proto.v1.ShareLinkInfo.newBuilder()).apply { block() }._build()
+public object ShareLinkInfoKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.ShareLinkInfo.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.ShareLinkInfo.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.ShareLinkInfo = _builder.build()
+
+    /**
+     * <code>string token = 1;</code>
+     */
+    public var token: kotlin.String
+      @JvmName("getToken")
+      get() = _builder.getToken()
+      @JvmName("setToken")
+      set(value) {
+        _builder.setToken(value)
+      }
+    /**
+     * <code>string token = 1;</code>
+     */
+    public fun clearToken() {
+      _builder.clearToken()
+    }
+
+    /**
+     * <code>string url = 2;</code>
+     */
+    public var url: kotlin.String
+      @JvmName("getUrl")
+      get() = _builder.getUrl()
+      @JvmName("setUrl")
+      set(value) {
+        _builder.setUrl(value)
+      }
+    /**
+     * <code>string url = 2;</code>
+     */
+    public fun clearUrl() {
+      _builder.clearUrl()
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public var createdAt: com.google.protobuf.Timestamp
+      @JvmName("getCreatedAt")
+      get() = _builder.getCreatedAt()
+      @JvmName("setCreatedAt")
+      set(value) {
+        _builder.setCreatedAt(value)
+      }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     */
+    public fun clearCreatedAt() {
+      _builder.clearCreatedAt()
+    }
+    /**
+     * <code>.google.protobuf.Timestamp created_at = 3;</code>
+     * @return Whether the createdAt field is set.
+     */
+    public fun hasCreatedAt(): kotlin.Boolean {
+      return _builder.hasCreatedAt()
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public var expiresAt: com.google.protobuf.Timestamp
+      @JvmName("getExpiresAt")
+      get() = _builder.getExpiresAt()
+      @JvmName("setExpiresAt")
+      set(value) {
+        _builder.setExpiresAt(value)
+      }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     */
+    public fun clearExpiresAt() {
+      _builder.clearExpiresAt()
+    }
+    /**
+     * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+     * @return Whether the expiresAt field is set.
+     */
+    public fun hasExpiresAt(): kotlin.Boolean {
+      return _builder.hasExpiresAt()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.ShareLinkInfo.copy(block: net.metacircular.engpad.proto.v1.ShareLinkInfoKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.ShareLinkInfo =
+  net.metacircular.engpad.proto.v1.ShareLinkInfoKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+
+val net.metacircular.engpad.proto.v1.ShareLinkInfoOrBuilder.createdAtOrNull: com.google.protobuf.Timestamp?
+  get() = if (hasCreatedAt()) getCreatedAt() else null
+
+val net.metacircular.engpad.proto.v1.ShareLinkInfoOrBuilder.expiresAtOrNull: com.google.protobuf.Timestamp?
+  get() = if (hasExpiresAt()) getExpiresAt() else null
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/ShareLinkInfoOrBuilder.java

@@ -0,0 +1,55 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface ShareLinkInfoOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.ShareLinkInfo)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>string token = 1;</code>
+   * @return The token.
+   */
+  java.lang.String getToken();
+  /**
+   * <code>string token = 1;</code>
+   * @return The bytes for token.
+   */
+  com.google.protobuf.ByteString
+      getTokenBytes();
+
+  /**
+   * <code>string url = 2;</code>
+   * @return The url.
+   */
+  java.lang.String getUrl();
+  /**
+   * <code>string url = 2;</code>
+   * @return The bytes for url.
+   */
+  com.google.protobuf.ByteString
+      getUrlBytes();
+
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   * @return Whether the createdAt field is set.
+   */
+  boolean hasCreatedAt();
+  /**
+   * <code>.google.protobuf.Timestamp created_at = 3;</code>
+   * @return The createdAt.
+   */
+  com.google.protobuf.Timestamp getCreatedAt();
+
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   * @return Whether the expiresAt field is set.
+   */
+  boolean hasExpiresAt();
+  /**
+   * <code>.google.protobuf.Timestamp expires_at = 4;</code>
+   * @return The expiresAt.
+   */
+  com.google.protobuf.Timestamp getExpiresAt();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/StrokeData.java

@@ -0,0 +1,504 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.StrokeData}
+ */
+public  final class StrokeData extends
+    com.google.protobuf.GeneratedMessageLite<
+        StrokeData, StrokeData.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.StrokeData)
+    StrokeDataOrBuilder {
+  private StrokeData() {
+    style_ = "";
+    pointData_ = com.google.protobuf.ByteString.EMPTY;
+  }
+  public static final int PEN_SIZE_FIELD_NUMBER = 1;
+  private float penSize_;
+  /**
+   * <code>float pen_size = 1;</code>
+   * @return The penSize.
+   */
+  @java.lang.Override
+  public float getPenSize() {
+    return penSize_;
+  }
+  /**
+   * <code>float pen_size = 1;</code>
+   * @param value The penSize to set.
+   */
+  private void setPenSize(float value) {
+    
+    penSize_ = value;
+  }
+  /**
+   * <code>float pen_size = 1;</code>
+   */
+  private void clearPenSize() {
+    
+    penSize_ = 0F;
+  }
+
+  public static final int COLOR_FIELD_NUMBER = 2;
+  private int color_;
+  /**
+   * <code>int32 color = 2;</code>
+   * @return The color.
+   */
+  @java.lang.Override
+  public int getColor() {
+    return color_;
+  }
+  /**
+   * <code>int32 color = 2;</code>
+   * @param value The color to set.
+   */
+  private void setColor(int value) {
+    
+    color_ = value;
+  }
+  /**
+   * <code>int32 color = 2;</code>
+   */
+  private void clearColor() {
+    
+    color_ = 0;
+  }
+
+  public static final int STYLE_FIELD_NUMBER = 3;
+  private java.lang.String style_;
+  /**
+   * <code>string style = 3;</code>
+   * @return The style.
+   */
+  @java.lang.Override
+  public java.lang.String getStyle() {
+    return style_;
+  }
+  /**
+   * <code>string style = 3;</code>
+   * @return The bytes for style.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getStyleBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(style_);
+  }
+  /**
+   * <code>string style = 3;</code>
+   * @param value The style to set.
+   */
+  private void setStyle(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    style_ = value;
+  }
+  /**
+   * <code>string style = 3;</code>
+   */
+  private void clearStyle() {
+    
+    style_ = getDefaultInstance().getStyle();
+  }
+  /**
+   * <code>string style = 3;</code>
+   * @param value The bytes for style to set.
+   */
+  private void setStyleBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    style_ = value.toStringUtf8();
+    
+  }
+
+  public static final int POINT_DATA_FIELD_NUMBER = 4;
+  private com.google.protobuf.ByteString pointData_;
+  /**
+   * <code>bytes point_data = 4;</code>
+   * @return The pointData.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPointData() {
+    return pointData_;
+  }
+  /**
+   * <code>bytes point_data = 4;</code>
+   * @param value The pointData to set.
+   */
+  private void setPointData(com.google.protobuf.ByteString value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    pointData_ = value;
+  }
+  /**
+   * <code>bytes point_data = 4;</code>
+   */
+  private void clearPointData() {
+    
+    pointData_ = getDefaultInstance().getPointData();
+  }
+
+  public static final int STROKE_ORDER_FIELD_NUMBER = 5;
+  private int strokeOrder_;
+  /**
+   * <code>int32 stroke_order = 5;</code>
+   * @return The strokeOrder.
+   */
+  @java.lang.Override
+  public int getStrokeOrder() {
+    return strokeOrder_;
+  }
+  /**
+   * <code>int32 stroke_order = 5;</code>
+   * @param value The strokeOrder to set.
+   */
+  private void setStrokeOrder(int value) {
+    
+    strokeOrder_ = value;
+  }
+  /**
+   * <code>int32 stroke_order = 5;</code>
+   */
+  private void clearStrokeOrder() {
+    
+    strokeOrder_ = 0;
+  }
+
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.StrokeData parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.StrokeData prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.StrokeData}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.StrokeData, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.StrokeData)
+      net.metacircular.engpad.proto.v1.StrokeDataOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.StrokeData.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>float pen_size = 1;</code>
+     * @return The penSize.
+     */
+    @java.lang.Override
+    public float getPenSize() {
+      return instance.getPenSize();
+    }
+    /**
+     * <code>float pen_size = 1;</code>
+     * @param value The penSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPenSize(float value) {
+      copyOnWrite();
+      instance.setPenSize(value);
+      return this;
+    }
+    /**
+     * <code>float pen_size = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPenSize() {
+      copyOnWrite();
+      instance.clearPenSize();
+      return this;
+    }
+
+    /**
+     * <code>int32 color = 2;</code>
+     * @return The color.
+     */
+    @java.lang.Override
+    public int getColor() {
+      return instance.getColor();
+    }
+    /**
+     * <code>int32 color = 2;</code>
+     * @param value The color to set.
+     * @return This builder for chaining.
+     */
+    public Builder setColor(int value) {
+      copyOnWrite();
+      instance.setColor(value);
+      return this;
+    }
+    /**
+     * <code>int32 color = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearColor() {
+      copyOnWrite();
+      instance.clearColor();
+      return this;
+    }
+
+    /**
+     * <code>string style = 3;</code>
+     * @return The style.
+     */
+    @java.lang.Override
+    public java.lang.String getStyle() {
+      return instance.getStyle();
+    }
+    /**
+     * <code>string style = 3;</code>
+     * @return The bytes for style.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getStyleBytes() {
+      return instance.getStyleBytes();
+    }
+    /**
+     * <code>string style = 3;</code>
+     * @param value The style to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStyle(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setStyle(value);
+      return this;
+    }
+    /**
+     * <code>string style = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearStyle() {
+      copyOnWrite();
+      instance.clearStyle();
+      return this;
+    }
+    /**
+     * <code>string style = 3;</code>
+     * @param value The bytes for style to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStyleBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setStyleBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>bytes point_data = 4;</code>
+     * @return The pointData.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getPointData() {
+      return instance.getPointData();
+    }
+    /**
+     * <code>bytes point_data = 4;</code>
+     * @param value The pointData to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPointData(com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setPointData(value);
+      return this;
+    }
+    /**
+     * <code>bytes point_data = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPointData() {
+      copyOnWrite();
+      instance.clearPointData();
+      return this;
+    }
+
+    /**
+     * <code>int32 stroke_order = 5;</code>
+     * @return The strokeOrder.
+     */
+    @java.lang.Override
+    public int getStrokeOrder() {
+      return instance.getStrokeOrder();
+    }
+    /**
+     * <code>int32 stroke_order = 5;</code>
+     * @param value The strokeOrder to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStrokeOrder(int value) {
+      copyOnWrite();
+      instance.setStrokeOrder(value);
+      return this;
+    }
+    /**
+     * <code>int32 stroke_order = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearStrokeOrder() {
+      copyOnWrite();
+      instance.clearStrokeOrder();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.StrokeData)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.StrokeData();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "penSize_",
+            "color_",
+            "style_",
+            "pointData_",
+            "strokeOrder_",
+          };
+          java.lang.String info =
+              "\u0000\u0005\u0000\u0000\u0001\u0005\u0005\u0000\u0000\u0000\u0001\u0001\u0002\u0004" +
+              "\u0003\u0208\u0004\n\u0005\u0004";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.StrokeData> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.StrokeData.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.StrokeData>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.StrokeData)
+  private static final net.metacircular.engpad.proto.v1.StrokeData DEFAULT_INSTANCE;
+  static {
+    StrokeData defaultInstance = new StrokeData();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      StrokeData.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.StrokeData getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<StrokeData> PARSER;
+
+  public static com.google.protobuf.Parser<StrokeData> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/StrokeDataKt.kt

@@ -0,0 +1,113 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializestrokeData")
+public inline fun strokeData(block: net.metacircular.engpad.proto.v1.StrokeDataKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.StrokeData =
+  net.metacircular.engpad.proto.v1.StrokeDataKt.Dsl._create(net.metacircular.engpad.proto.v1.StrokeData.newBuilder()).apply { block() }._build()
+public object StrokeDataKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.StrokeData.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.StrokeData.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.StrokeData = _builder.build()
+
+    /**
+     * <code>float pen_size = 1;</code>
+     */
+    public var penSize: kotlin.Float
+      @JvmName("getPenSize")
+      get() = _builder.getPenSize()
+      @JvmName("setPenSize")
+      set(value) {
+        _builder.setPenSize(value)
+      }
+    /**
+     * <code>float pen_size = 1;</code>
+     */
+    public fun clearPenSize() {
+      _builder.clearPenSize()
+    }
+
+    /**
+     * <code>int32 color = 2;</code>
+     */
+    public var color: kotlin.Int
+      @JvmName("getColor")
+      get() = _builder.getColor()
+      @JvmName("setColor")
+      set(value) {
+        _builder.setColor(value)
+      }
+    /**
+     * <code>int32 color = 2;</code>
+     */
+    public fun clearColor() {
+      _builder.clearColor()
+    }
+
+    /**
+     * <code>string style = 3;</code>
+     */
+    public var style: kotlin.String
+      @JvmName("getStyle")
+      get() = _builder.getStyle()
+      @JvmName("setStyle")
+      set(value) {
+        _builder.setStyle(value)
+      }
+    /**
+     * <code>string style = 3;</code>
+     */
+    public fun clearStyle() {
+      _builder.clearStyle()
+    }
+
+    /**
+     * <code>bytes point_data = 4;</code>
+     */
+    public var pointData: com.google.protobuf.ByteString
+      @JvmName("getPointData")
+      get() = _builder.getPointData()
+      @JvmName("setPointData")
+      set(value) {
+        _builder.setPointData(value)
+      }
+    /**
+     * <code>bytes point_data = 4;</code>
+     */
+    public fun clearPointData() {
+      _builder.clearPointData()
+    }
+
+    /**
+     * <code>int32 stroke_order = 5;</code>
+     */
+    public var strokeOrder: kotlin.Int
+      @JvmName("getStrokeOrder")
+      get() = _builder.getStrokeOrder()
+      @JvmName("setStrokeOrder")
+      set(value) {
+        _builder.setStrokeOrder(value)
+      }
+    /**
+     * <code>int32 stroke_order = 5;</code>
+     */
+    public fun clearStrokeOrder() {
+      _builder.clearStrokeOrder()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.StrokeData.copy(block: net.metacircular.engpad.proto.v1.StrokeDataKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.StrokeData =
+  net.metacircular.engpad.proto.v1.StrokeDataKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/StrokeDataOrBuilder.java

@@ -0,0 +1,45 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface StrokeDataOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.StrokeData)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>float pen_size = 1;</code>
+   * @return The penSize.
+   */
+  float getPenSize();
+
+  /**
+   * <code>int32 color = 2;</code>
+   * @return The color.
+   */
+  int getColor();
+
+  /**
+   * <code>string style = 3;</code>
+   * @return The style.
+   */
+  java.lang.String getStyle();
+  /**
+   * <code>string style = 3;</code>
+   * @return The bytes for style.
+   */
+  com.google.protobuf.ByteString
+      getStyleBytes();
+
+  /**
+   * <code>bytes point_data = 4;</code>
+   * @return The pointData.
+   */
+  com.google.protobuf.ByteString getPointData();
+
+  /**
+   * <code>int32 stroke_order = 5;</code>
+   * @return The strokeOrder.
+   */
+  int getStrokeOrder();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/Sync.java

@@ -0,0 +1,16 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public final class Sync {
+  private Sync() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  static {
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncGrpcKt.kt

@@ -0,0 +1,332 @@
+package net.metacircular.engpad.proto.v1
+
+import io.grpc.CallOptions
+import io.grpc.CallOptions.DEFAULT
+import io.grpc.Channel
+import io.grpc.Metadata
+import io.grpc.MethodDescriptor
+import io.grpc.ServerServiceDefinition
+import io.grpc.ServerServiceDefinition.builder
+import io.grpc.ServiceDescriptor
+import io.grpc.Status.UNIMPLEMENTED
+import io.grpc.StatusException
+import io.grpc.kotlin.AbstractCoroutineServerImpl
+import io.grpc.kotlin.AbstractCoroutineStub
+import io.grpc.kotlin.ClientCalls.unaryRpc
+import io.grpc.kotlin.ServerCalls.unaryServerMethodDefinition
+import io.grpc.kotlin.StubFor
+import kotlin.String
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.EmptyCoroutineContext
+import kotlin.jvm.JvmOverloads
+import kotlin.jvm.JvmStatic
+import net.metacircular.engpad.proto.v1.EngPadSyncServiceGrpc.getServiceDescriptor
+
+/**
+ * Holder for Kotlin coroutine-based client and server APIs for engpad.v1.EngPadSyncService.
+ */
+public object EngPadSyncServiceGrpcKt {
+  public const val SERVICE_NAME: String = EngPadSyncServiceGrpc.SERVICE_NAME
+
+  @JvmStatic
+  public val serviceDescriptor: ServiceDescriptor
+    get() = getServiceDescriptor()
+
+  public val syncNotebookMethod: MethodDescriptor<SyncNotebookRequest, SyncNotebookResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getSyncNotebookMethod()
+
+  public val deleteNotebookMethod: MethodDescriptor<DeleteNotebookRequest, DeleteNotebookResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getDeleteNotebookMethod()
+
+  public val listNotebooksMethod: MethodDescriptor<ListNotebooksRequest, ListNotebooksResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getListNotebooksMethod()
+
+  public val createShareLinkMethod:
+      MethodDescriptor<CreateShareLinkRequest, CreateShareLinkResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getCreateShareLinkMethod()
+
+  public val revokeShareLinkMethod:
+      MethodDescriptor<RevokeShareLinkRequest, RevokeShareLinkResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getRevokeShareLinkMethod()
+
+  public val listShareLinksMethod: MethodDescriptor<ListShareLinksRequest, ListShareLinksResponse>
+    @JvmStatic
+    get() = EngPadSyncServiceGrpc.getListShareLinksMethod()
+
+  /**
+   * A stub for issuing RPCs to a(n) engpad.v1.EngPadSyncService service as suspending coroutines.
+   */
+  @StubFor(EngPadSyncServiceGrpc::class)
+  public class EngPadSyncServiceCoroutineStub @JvmOverloads constructor(
+    channel: Channel,
+    callOptions: CallOptions = DEFAULT,
+  ) : AbstractCoroutineStub<EngPadSyncServiceCoroutineStub>(channel, callOptions) {
+    override fun build(channel: Channel, callOptions: CallOptions): EngPadSyncServiceCoroutineStub =
+        EngPadSyncServiceCoroutineStub(channel, callOptions)
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun syncNotebook(request: SyncNotebookRequest, headers: Metadata = Metadata()):
+        SyncNotebookResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getSyncNotebookMethod(),
+      request,
+      callOptions,
+      headers
+    )
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun deleteNotebook(request: DeleteNotebookRequest, headers: Metadata =
+        Metadata()): DeleteNotebookResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getDeleteNotebookMethod(),
+      request,
+      callOptions,
+      headers
+    )
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun listNotebooks(request: ListNotebooksRequest, headers: Metadata = Metadata()):
+        ListNotebooksResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getListNotebooksMethod(),
+      request,
+      callOptions,
+      headers
+    )
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun createShareLink(request: CreateShareLinkRequest, headers: Metadata =
+        Metadata()): CreateShareLinkResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getCreateShareLinkMethod(),
+      request,
+      callOptions,
+      headers
+    )
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun revokeShareLink(request: RevokeShareLinkRequest, headers: Metadata =
+        Metadata()): RevokeShareLinkResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getRevokeShareLinkMethod(),
+      request,
+      callOptions,
+      headers
+    )
+
+    /**
+     * Executes this RPC and returns the response message, suspending until the RPC completes
+     * with [`Status.OK`][io.grpc.Status].  If the RPC completes with another status, a
+     * corresponding
+     * [StatusException] is thrown.  If this coroutine is cancelled, the RPC is also cancelled
+     * with the corresponding exception as a cause.
+     *
+     * @param request The request message to send to the server.
+     *
+     * @param headers Metadata to attach to the request.  Most users will not need this.
+     *
+     * @return The single response from the server.
+     */
+    public suspend fun listShareLinks(request: ListShareLinksRequest, headers: Metadata =
+        Metadata()): ListShareLinksResponse = unaryRpc(
+      channel,
+      EngPadSyncServiceGrpc.getListShareLinksMethod(),
+      request,
+      callOptions,
+      headers
+    )
+  }
+
+  /**
+   * Skeletal implementation of the engpad.v1.EngPadSyncService service based on Kotlin coroutines.
+   */
+  public abstract class EngPadSyncServiceCoroutineImplBase(
+    coroutineContext: CoroutineContext = EmptyCoroutineContext,
+  ) : AbstractCoroutineServerImpl(coroutineContext) {
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.SyncNotebook.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun syncNotebook(request: SyncNotebookRequest): SyncNotebookResponse = throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.SyncNotebook is unimplemented"))
+
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.DeleteNotebook.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun deleteNotebook(request: DeleteNotebookRequest): DeleteNotebookResponse =
+        throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.DeleteNotebook is unimplemented"))
+
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.ListNotebooks.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun listNotebooks(request: ListNotebooksRequest): ListNotebooksResponse =
+        throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.ListNotebooks is unimplemented"))
+
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.CreateShareLink.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun createShareLink(request: CreateShareLinkRequest):
+        CreateShareLinkResponse = throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.CreateShareLink is unimplemented"))
+
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.RevokeShareLink.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun revokeShareLink(request: RevokeShareLinkRequest):
+        RevokeShareLinkResponse = throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.RevokeShareLink is unimplemented"))
+
+    /**
+     * Returns the response to an RPC for engpad.v1.EngPadSyncService.ListShareLinks.
+     *
+     * If this method fails with a [StatusException], the RPC will fail with the corresponding
+     * [io.grpc.Status].  If this method fails with a [java.util.concurrent.CancellationException],
+     * the RPC will fail
+     * with status `Status.CANCELLED`.  If this method fails for any other reason, the RPC will
+     * fail with `Status.UNKNOWN` with the exception as a cause.
+     *
+     * @param request The request from the client.
+     */
+    public open suspend fun listShareLinks(request: ListShareLinksRequest): ListShareLinksResponse =
+        throw
+        StatusException(UNIMPLEMENTED.withDescription("Method engpad.v1.EngPadSyncService.ListShareLinks is unimplemented"))
+
+    final override fun bindService(): ServerServiceDefinition = builder(getServiceDescriptor())
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getSyncNotebookMethod(),
+      implementation = ::syncNotebook
+    ))
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getDeleteNotebookMethod(),
+      implementation = ::deleteNotebook
+    ))
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getListNotebooksMethod(),
+      implementation = ::listNotebooks
+    ))
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getCreateShareLinkMethod(),
+      implementation = ::createShareLink
+    ))
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getRevokeShareLinkMethod(),
+      implementation = ::revokeShareLink
+    ))
+      .addMethod(unaryServerMethodDefinition(
+      context = this.context,
+      descriptor = EngPadSyncServiceGrpc.getListShareLinksMethod(),
+      implementation = ::listShareLinks
+    )).build()
+  }
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookRequest.java

@@ -0,0 +1,634 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.SyncNotebookRequest}
+ */
+public  final class SyncNotebookRequest extends
+    com.google.protobuf.GeneratedMessageLite<
+        SyncNotebookRequest, SyncNotebookRequest.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.SyncNotebookRequest)
+    SyncNotebookRequestOrBuilder {
+  private SyncNotebookRequest() {
+    title_ = "";
+    pageSize_ = "";
+    pages_ = emptyProtobufList();
+  }
+  public static final int NOTEBOOK_ID_FIELD_NUMBER = 1;
+  private long notebookId_;
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  @java.lang.Override
+  public long getNotebookId() {
+    return notebookId_;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @param value The notebookId to set.
+   */
+  private void setNotebookId(long value) {
+    
+    notebookId_ = value;
+  }
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   */
+  private void clearNotebookId() {
+    
+    notebookId_ = 0L;
+  }
+
+  public static final int TITLE_FIELD_NUMBER = 2;
+  private java.lang.String title_;
+  /**
+   * <code>string title = 2;</code>
+   * @return The title.
+   */
+  @java.lang.Override
+  public java.lang.String getTitle() {
+    return title_;
+  }
+  /**
+   * <code>string title = 2;</code>
+   * @return The bytes for title.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTitleBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(title_);
+  }
+  /**
+   * <code>string title = 2;</code>
+   * @param value The title to set.
+   */
+  private void setTitle(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    title_ = value;
+  }
+  /**
+   * <code>string title = 2;</code>
+   */
+  private void clearTitle() {
+    
+    title_ = getDefaultInstance().getTitle();
+  }
+  /**
+   * <code>string title = 2;</code>
+   * @param value The bytes for title to set.
+   */
+  private void setTitleBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    title_ = value.toStringUtf8();
+    
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 3;
+  private java.lang.String pageSize_;
+  /**
+   * <code>string page_size = 3;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public java.lang.String getPageSize() {
+    return pageSize_;
+  }
+  /**
+   * <code>string page_size = 3;</code>
+   * @return The bytes for pageSize.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getPageSizeBytes() {
+    return com.google.protobuf.ByteString.copyFromUtf8(pageSize_);
+  }
+  /**
+   * <code>string page_size = 3;</code>
+   * @param value The pageSize to set.
+   */
+  private void setPageSize(
+      java.lang.String value) {
+    java.lang.Class<?> valueClass = value.getClass();
+  
+    pageSize_ = value;
+  }
+  /**
+   * <code>string page_size = 3;</code>
+   */
+  private void clearPageSize() {
+    
+    pageSize_ = getDefaultInstance().getPageSize();
+  }
+  /**
+   * <code>string page_size = 3;</code>
+   * @param value The bytes for pageSize to set.
+   */
+  private void setPageSizeBytes(
+      com.google.protobuf.ByteString value) {
+    checkByteStringIsUtf8(value);
+    pageSize_ = value.toStringUtf8();
+    
+  }
+
+  public static final int PAGES_FIELD_NUMBER = 4;
+  private com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.PageData> pages_;
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  @java.lang.Override
+  public java.util.List<net.metacircular.engpad.proto.v1.PageData> getPagesList() {
+    return pages_;
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  public java.util.List<? extends net.metacircular.engpad.proto.v1.PageDataOrBuilder> 
+      getPagesOrBuilderList() {
+    return pages_;
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  @java.lang.Override
+  public int getPagesCount() {
+    return pages_.size();
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  @java.lang.Override
+  public net.metacircular.engpad.proto.v1.PageData getPages(int index) {
+    return pages_.get(index);
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  public net.metacircular.engpad.proto.v1.PageDataOrBuilder getPagesOrBuilder(
+      int index) {
+    return pages_.get(index);
+  }
+  private void ensurePagesIsMutable() {
+    com.google.protobuf.Internal.ProtobufList<net.metacircular.engpad.proto.v1.PageData> tmp = pages_;
+    if (!tmp.isModifiable()) {
+      pages_ =
+          com.google.protobuf.GeneratedMessageLite.mutableCopy(tmp);
+     }
+  }
+
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void setPages(
+      int index, net.metacircular.engpad.proto.v1.PageData value) {
+    value.getClass();
+  ensurePagesIsMutable();
+    pages_.set(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void addPages(net.metacircular.engpad.proto.v1.PageData value) {
+    value.getClass();
+  ensurePagesIsMutable();
+    pages_.add(value);
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void addPages(
+      int index, net.metacircular.engpad.proto.v1.PageData value) {
+    value.getClass();
+  ensurePagesIsMutable();
+    pages_.add(index, value);
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void addAllPages(
+      java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.PageData> values) {
+    ensurePagesIsMutable();
+    com.google.protobuf.AbstractMessageLite.addAll(
+        values, pages_);
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void clearPages() {
+    pages_ = emptyProtobufList();
+  }
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  private void removePages(int index) {
+    ensurePagesIsMutable();
+    pages_.remove(index);
+  }
+
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.SyncNotebookRequest prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.SyncNotebookRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.SyncNotebookRequest, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.SyncNotebookRequest)
+      net.metacircular.engpad.proto.v1.SyncNotebookRequestOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.SyncNotebookRequest.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return The notebookId.
+     */
+    @java.lang.Override
+    public long getNotebookId() {
+      return instance.getNotebookId();
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @param value The notebookId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNotebookId(long value) {
+      copyOnWrite();
+      instance.setNotebookId(value);
+      return this;
+    }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNotebookId() {
+      copyOnWrite();
+      instance.clearNotebookId();
+      return this;
+    }
+
+    /**
+     * <code>string title = 2;</code>
+     * @return The title.
+     */
+    @java.lang.Override
+    public java.lang.String getTitle() {
+      return instance.getTitle();
+    }
+    /**
+     * <code>string title = 2;</code>
+     * @return The bytes for title.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTitleBytes() {
+      return instance.getTitleBytes();
+    }
+    /**
+     * <code>string title = 2;</code>
+     * @param value The title to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTitle(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setTitle(value);
+      return this;
+    }
+    /**
+     * <code>string title = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTitle() {
+      copyOnWrite();
+      instance.clearTitle();
+      return this;
+    }
+    /**
+     * <code>string title = 2;</code>
+     * @param value The bytes for title to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTitleBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setTitleBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>string page_size = 3;</code>
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public java.lang.String getPageSize() {
+      return instance.getPageSize();
+    }
+    /**
+     * <code>string page_size = 3;</code>
+     * @return The bytes for pageSize.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getPageSizeBytes() {
+      return instance.getPageSizeBytes();
+    }
+    /**
+     * <code>string page_size = 3;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(
+        java.lang.String value) {
+      copyOnWrite();
+      instance.setPageSize(value);
+      return this;
+    }
+    /**
+     * <code>string page_size = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      copyOnWrite();
+      instance.clearPageSize();
+      return this;
+    }
+    /**
+     * <code>string page_size = 3;</code>
+     * @param value The bytes for pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSizeBytes(
+        com.google.protobuf.ByteString value) {
+      copyOnWrite();
+      instance.setPageSizeBytes(value);
+      return this;
+    }
+
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    @java.lang.Override
+    public java.util.List<net.metacircular.engpad.proto.v1.PageData> getPagesList() {
+      return java.util.Collections.unmodifiableList(
+          instance.getPagesList());
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    @java.lang.Override
+    public int getPagesCount() {
+      return instance.getPagesCount();
+    }/**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    @java.lang.Override
+    public net.metacircular.engpad.proto.v1.PageData getPages(int index) {
+      return instance.getPages(index);
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder setPages(
+        int index, net.metacircular.engpad.proto.v1.PageData value) {
+      copyOnWrite();
+      instance.setPages(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder setPages(
+        int index, net.metacircular.engpad.proto.v1.PageData.Builder builderForValue) {
+      copyOnWrite();
+      instance.setPages(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder addPages(net.metacircular.engpad.proto.v1.PageData value) {
+      copyOnWrite();
+      instance.addPages(value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder addPages(
+        int index, net.metacircular.engpad.proto.v1.PageData value) {
+      copyOnWrite();
+      instance.addPages(index, value);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder addPages(
+        net.metacircular.engpad.proto.v1.PageData.Builder builderForValue) {
+      copyOnWrite();
+      instance.addPages(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder addPages(
+        int index, net.metacircular.engpad.proto.v1.PageData.Builder builderForValue) {
+      copyOnWrite();
+      instance.addPages(index,
+          builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder addAllPages(
+        java.lang.Iterable<? extends net.metacircular.engpad.proto.v1.PageData> values) {
+      copyOnWrite();
+      instance.addAllPages(values);
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder clearPages() {
+      copyOnWrite();
+      instance.clearPages();
+      return this;
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    public Builder removePages(int index) {
+      copyOnWrite();
+      instance.removePages(index);
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.SyncNotebookRequest)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.SyncNotebookRequest();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "notebookId_",
+            "title_",
+            "pageSize_",
+            "pages_",
+            net.metacircular.engpad.proto.v1.PageData.class,
+          };
+          java.lang.String info =
+              "\u0000\u0004\u0000\u0000\u0001\u0004\u0004\u0000\u0001\u0000\u0001\u0002\u0002\u0208" +
+              "\u0003\u0208\u0004\u001b";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.SyncNotebookRequest> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.SyncNotebookRequest.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.SyncNotebookRequest>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.SyncNotebookRequest)
+  private static final net.metacircular.engpad.proto.v1.SyncNotebookRequest DEFAULT_INSTANCE;
+  static {
+    SyncNotebookRequest defaultInstance = new SyncNotebookRequest();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      SyncNotebookRequest.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.SyncNotebookRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<SyncNotebookRequest> PARSER;
+
+  public static com.google.protobuf.Parser<SyncNotebookRequest> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookRequestKt.kt

@@ -0,0 +1,150 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializesyncNotebookRequest")
+public inline fun syncNotebookRequest(block: net.metacircular.engpad.proto.v1.SyncNotebookRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.SyncNotebookRequest =
+  net.metacircular.engpad.proto.v1.SyncNotebookRequestKt.Dsl._create(net.metacircular.engpad.proto.v1.SyncNotebookRequest.newBuilder()).apply { block() }._build()
+public object SyncNotebookRequestKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.SyncNotebookRequest.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.SyncNotebookRequest.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.SyncNotebookRequest = _builder.build()
+
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public var notebookId: kotlin.Long
+      @JvmName("getNotebookId")
+      get() = _builder.getNotebookId()
+      @JvmName("setNotebookId")
+      set(value) {
+        _builder.setNotebookId(value)
+      }
+    /**
+     * <code>int64 notebook_id = 1;</code>
+     */
+    public fun clearNotebookId() {
+      _builder.clearNotebookId()
+    }
+
+    /**
+     * <code>string title = 2;</code>
+     */
+    public var title: kotlin.String
+      @JvmName("getTitle")
+      get() = _builder.getTitle()
+      @JvmName("setTitle")
+      set(value) {
+        _builder.setTitle(value)
+      }
+    /**
+     * <code>string title = 2;</code>
+     */
+    public fun clearTitle() {
+      _builder.clearTitle()
+    }
+
+    /**
+     * <code>string page_size = 3;</code>
+     */
+    public var pageSize: kotlin.String
+      @JvmName("getPageSize")
+      get() = _builder.getPageSize()
+      @JvmName("setPageSize")
+      set(value) {
+        _builder.setPageSize(value)
+      }
+    /**
+     * <code>string page_size = 3;</code>
+     */
+    public fun clearPageSize() {
+      _builder.clearPageSize()
+    }
+
+    /**
+     * An uninstantiable, behaviorless type to represent the field in
+     * generics.
+     */
+    @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+    public class PagesProxy private constructor() : com.google.protobuf.kotlin.DslProxy()
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+     public val pages: com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>
+      @kotlin.jvm.JvmSynthetic
+      get() = com.google.protobuf.kotlin.DslList(
+        _builder.getPagesList()
+      )
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     * @param value The pages to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addPages")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.add(value: net.metacircular.engpad.proto.v1.PageData) {
+      _builder.addPages(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     * @param value The pages to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignPages")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.plusAssign(value: net.metacircular.engpad.proto.v1.PageData) {
+      add(value)
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     * @param values The pages to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("addAllPages")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.addAll(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.PageData>) {
+      _builder.addAllPages(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     * @param values The pages to add.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("plusAssignAllPages")
+    @Suppress("NOTHING_TO_INLINE")
+    public inline operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.plusAssign(values: kotlin.collections.Iterable<net.metacircular.engpad.proto.v1.PageData>) {
+      addAll(values)
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     * @param index The index to set the value at.
+     * @param value The pages to set.
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("setPages")
+    public operator fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.set(index: kotlin.Int, value: net.metacircular.engpad.proto.v1.PageData) {
+      _builder.setPages(index, value)
+    }
+    /**
+     * <code>repeated .engpad.v1.PageData pages = 4;</code>
+     */
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.jvm.JvmName("clearPages")
+    public fun com.google.protobuf.kotlin.DslList<net.metacircular.engpad.proto.v1.PageData, PagesProxy>.clear() {
+      _builder.clearPages()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.SyncNotebookRequest.copy(block: net.metacircular.engpad.proto.v1.SyncNotebookRequestKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.SyncNotebookRequest =
+  net.metacircular.engpad.proto.v1.SyncNotebookRequestKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookRequestOrBuilder.java

@@ -0,0 +1,53 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface SyncNotebookRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.SyncNotebookRequest)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 notebook_id = 1;</code>
+   * @return The notebookId.
+   */
+  long getNotebookId();
+
+  /**
+   * <code>string title = 2;</code>
+   * @return The title.
+   */
+  java.lang.String getTitle();
+  /**
+   * <code>string title = 2;</code>
+   * @return The bytes for title.
+   */
+  com.google.protobuf.ByteString
+      getTitleBytes();
+
+  /**
+   * <code>string page_size = 3;</code>
+   * @return The pageSize.
+   */
+  java.lang.String getPageSize();
+  /**
+   * <code>string page_size = 3;</code>
+   * @return The bytes for pageSize.
+   */
+  com.google.protobuf.ByteString
+      getPageSizeBytes();
+
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  java.util.List<net.metacircular.engpad.proto.v1.PageData> 
+      getPagesList();
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  net.metacircular.engpad.proto.v1.PageData getPages(int index);
+  /**
+   * <code>repeated .engpad.v1.PageData pages = 4;</code>
+   */
+  int getPagesCount();
+}

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookResponse.java

@@ -0,0 +1,333 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+/**
+ * Protobuf type {@code engpad.v1.SyncNotebookResponse}
+ */
+public  final class SyncNotebookResponse extends
+    com.google.protobuf.GeneratedMessageLite<
+        SyncNotebookResponse, SyncNotebookResponse.Builder> implements
+    // @@protoc_insertion_point(message_implements:engpad.v1.SyncNotebookResponse)
+    SyncNotebookResponseOrBuilder {
+  private SyncNotebookResponse() {
+  }
+  public static final int SERVER_NOTEBOOK_ID_FIELD_NUMBER = 1;
+  private long serverNotebookId_;
+  /**
+   * <code>int64 server_notebook_id = 1;</code>
+   * @return The serverNotebookId.
+   */
+  @java.lang.Override
+  public long getServerNotebookId() {
+    return serverNotebookId_;
+  }
+  /**
+   * <code>int64 server_notebook_id = 1;</code>
+   * @param value The serverNotebookId to set.
+   */
+  private void setServerNotebookId(long value) {
+    
+    serverNotebookId_ = value;
+  }
+  /**
+   * <code>int64 server_notebook_id = 1;</code>
+   */
+  private void clearServerNotebookId() {
+    
+    serverNotebookId_ = 0L;
+  }
+
+  public static final int SYNCED_AT_FIELD_NUMBER = 2;
+  private com.google.protobuf.Timestamp syncedAt_;
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   */
+  @java.lang.Override
+  public boolean hasSyncedAt() {
+    return syncedAt_ != null;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getSyncedAt() {
+    return syncedAt_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : syncedAt_;
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   */
+  private void setSyncedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  syncedAt_ = value;
+    
+    }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   */
+  @java.lang.SuppressWarnings({"ReferenceEquality"})
+  private void mergeSyncedAt(com.google.protobuf.Timestamp value) {
+    value.getClass();
+  if (syncedAt_ != null &&
+        syncedAt_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+      syncedAt_ =
+        com.google.protobuf.Timestamp.newBuilder(syncedAt_).mergeFrom(value).buildPartial();
+    } else {
+      syncedAt_ = value;
+    }
+    
+  }
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   */
+  private void clearSyncedAt() {  syncedAt_ = null;
+    
+  }
+
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, data, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input);
+  }
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageLite.parseFrom(
+        DEFAULT_INSTANCE, input, extensionRegistry);
+  }
+
+  public static Builder newBuilder() {
+    return (Builder) DEFAULT_INSTANCE.createBuilder();
+  }
+  public static Builder newBuilder(net.metacircular.engpad.proto.v1.SyncNotebookResponse prototype) {
+    return (Builder) DEFAULT_INSTANCE.createBuilder(prototype);
+  }
+
+  /**
+   * Protobuf type {@code engpad.v1.SyncNotebookResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageLite.Builder<
+        net.metacircular.engpad.proto.v1.SyncNotebookResponse, Builder> implements
+      // @@protoc_insertion_point(builder_implements:engpad.v1.SyncNotebookResponse)
+      net.metacircular.engpad.proto.v1.SyncNotebookResponseOrBuilder {
+    // Construct using net.metacircular.engpad.proto.v1.SyncNotebookResponse.newBuilder()
+    private Builder() {
+      super(DEFAULT_INSTANCE);
+    }
+
+
+    /**
+     * <code>int64 server_notebook_id = 1;</code>
+     * @return The serverNotebookId.
+     */
+    @java.lang.Override
+    public long getServerNotebookId() {
+      return instance.getServerNotebookId();
+    }
+    /**
+     * <code>int64 server_notebook_id = 1;</code>
+     * @param value The serverNotebookId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setServerNotebookId(long value) {
+      copyOnWrite();
+      instance.setServerNotebookId(value);
+      return this;
+    }
+    /**
+     * <code>int64 server_notebook_id = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearServerNotebookId() {
+      copyOnWrite();
+      instance.clearServerNotebookId();
+      return this;
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    @java.lang.Override
+    public boolean hasSyncedAt() {
+      return instance.hasSyncedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getSyncedAt() {
+      return instance.getSyncedAt();
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public Builder setSyncedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.setSyncedAt(value);
+      return this;
+      }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public Builder setSyncedAt(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      copyOnWrite();
+      instance.setSyncedAt(builderForValue.build());
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public Builder mergeSyncedAt(com.google.protobuf.Timestamp value) {
+      copyOnWrite();
+      instance.mergeSyncedAt(value);
+      return this;
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public Builder clearSyncedAt() {  copyOnWrite();
+      instance.clearSyncedAt();
+      return this;
+    }
+
+    // @@protoc_insertion_point(builder_scope:engpad.v1.SyncNotebookResponse)
+  }
+  @java.lang.Override
+  @java.lang.SuppressWarnings({"unchecked", "fallthrough"})
+  protected final java.lang.Object dynamicMethod(
+      com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,
+      java.lang.Object arg0, java.lang.Object arg1) {
+    switch (method) {
+      case NEW_MUTABLE_INSTANCE: {
+        return new net.metacircular.engpad.proto.v1.SyncNotebookResponse();
+      }
+      case NEW_BUILDER: {
+        return new Builder();
+      }
+      case BUILD_MESSAGE_INFO: {
+          java.lang.Object[] objects = new java.lang.Object[] {
+            "serverNotebookId_",
+            "syncedAt_",
+          };
+          java.lang.String info =
+              "\u0000\u0002\u0000\u0000\u0001\u0002\u0002\u0000\u0000\u0000\u0001\u0002\u0002\t" +
+              "";
+          return newMessageInfo(DEFAULT_INSTANCE, info, objects);
+      }
+      // fall through
+      case GET_DEFAULT_INSTANCE: {
+        return DEFAULT_INSTANCE;
+      }
+      case GET_PARSER: {
+        com.google.protobuf.Parser<net.metacircular.engpad.proto.v1.SyncNotebookResponse> parser = PARSER;
+        if (parser == null) {
+          synchronized (net.metacircular.engpad.proto.v1.SyncNotebookResponse.class) {
+            parser = PARSER;
+            if (parser == null) {
+              parser =
+                  new DefaultInstanceBasedParser<net.metacircular.engpad.proto.v1.SyncNotebookResponse>(
+                      DEFAULT_INSTANCE);
+              PARSER = parser;
+            }
+          }
+        }
+        return parser;
+    }
+    case GET_MEMOIZED_IS_INITIALIZED: {
+      return (byte) 1;
+    }
+    case SET_MEMOIZED_IS_INITIALIZED: {
+      return null;
+    }
+    }
+    throw new UnsupportedOperationException();
+  }
+
+
+  // @@protoc_insertion_point(class_scope:engpad.v1.SyncNotebookResponse)
+  private static final net.metacircular.engpad.proto.v1.SyncNotebookResponse DEFAULT_INSTANCE;
+  static {
+    SyncNotebookResponse defaultInstance = new SyncNotebookResponse();
+    // New instances are implicitly immutable so no need to make
+    // immutable.
+    DEFAULT_INSTANCE = defaultInstance;
+    com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(
+      SyncNotebookResponse.class, defaultInstance);
+  }
+
+  public static net.metacircular.engpad.proto.v1.SyncNotebookResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static volatile com.google.protobuf.Parser<SyncNotebookResponse> PARSER;
+
+  public static com.google.protobuf.Parser<SyncNotebookResponse> parser() {
+    return DEFAULT_INSTANCE.getParserForType();
+  }
+}
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookResponseKt.kt

@@ -0,0 +1,72 @@
+//Generated by the protocol buffer compiler. DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+@kotlin.jvm.JvmName("-initializesyncNotebookResponse")
+public inline fun syncNotebookResponse(block: net.metacircular.engpad.proto.v1.SyncNotebookResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.SyncNotebookResponse =
+  net.metacircular.engpad.proto.v1.SyncNotebookResponseKt.Dsl._create(net.metacircular.engpad.proto.v1.SyncNotebookResponse.newBuilder()).apply { block() }._build()
+public object SyncNotebookResponseKt {
+  @kotlin.OptIn(com.google.protobuf.kotlin.OnlyForUseByGeneratedProtoCode::class)
+  @com.google.protobuf.kotlin.ProtoDslMarker
+  public class Dsl private constructor(
+    private val _builder: net.metacircular.engpad.proto.v1.SyncNotebookResponse.Builder
+  ) {
+    public companion object {
+      @kotlin.jvm.JvmSynthetic
+      @kotlin.PublishedApi
+      internal fun _create(builder: net.metacircular.engpad.proto.v1.SyncNotebookResponse.Builder): Dsl = Dsl(builder)
+    }
+
+    @kotlin.jvm.JvmSynthetic
+    @kotlin.PublishedApi
+    internal fun _build(): net.metacircular.engpad.proto.v1.SyncNotebookResponse = _builder.build()
+
+    /**
+     * <code>int64 server_notebook_id = 1;</code>
+     */
+    public var serverNotebookId: kotlin.Long
+      @JvmName("getServerNotebookId")
+      get() = _builder.getServerNotebookId()
+      @JvmName("setServerNotebookId")
+      set(value) {
+        _builder.setServerNotebookId(value)
+      }
+    /**
+     * <code>int64 server_notebook_id = 1;</code>
+     */
+    public fun clearServerNotebookId() {
+      _builder.clearServerNotebookId()
+    }
+
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public var syncedAt: com.google.protobuf.Timestamp
+      @JvmName("getSyncedAt")
+      get() = _builder.getSyncedAt()
+      @JvmName("setSyncedAt")
+      set(value) {
+        _builder.setSyncedAt(value)
+      }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     */
+    public fun clearSyncedAt() {
+      _builder.clearSyncedAt()
+    }
+    /**
+     * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+     * @return Whether the syncedAt field is set.
+     */
+    public fun hasSyncedAt(): kotlin.Boolean {
+      return _builder.hasSyncedAt()
+    }
+  }
+}
+public inline fun net.metacircular.engpad.proto.v1.SyncNotebookResponse.copy(block: net.metacircular.engpad.proto.v1.SyncNotebookResponseKt.Dsl.() -> kotlin.Unit): net.metacircular.engpad.proto.v1.SyncNotebookResponse =
+  net.metacircular.engpad.proto.v1.SyncNotebookResponseKt.Dsl._create(this.toBuilder()).apply { block() }._build()
+
+val net.metacircular.engpad.proto.v1.SyncNotebookResponseOrBuilder.syncedAtOrNull: com.google.protobuf.Timestamp?
+  get() = if (hasSyncedAt()) getSyncedAt() else null
+

app/src/main/java/gen/net/metacircular/engpad/proto/v1/SyncNotebookResponseOrBuilder.java

@@ -0,0 +1,26 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: engpad/v1/sync.proto
+
+package net.metacircular.engpad.proto.v1;
+
+public interface SyncNotebookResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:engpad.v1.SyncNotebookResponse)
+    com.google.protobuf.MessageLiteOrBuilder {
+
+  /**
+   * <code>int64 server_notebook_id = 1;</code>
+   * @return The serverNotebookId.
+   */
+  long getServerNotebookId();
+
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   * @return Whether the syncedAt field is set.
+   */
+  boolean hasSyncedAt();
+  /**
+   * <code>.google.protobuf.Timestamp synced_at = 2;</code>
+   * @return The syncedAt.
+   */
+  com.google.protobuf.Timestamp getSyncedAt();
+}

app/src/main/kotlin/net/metacircular/engpad/data/sync/SyncClient.kt

@@ -9,7 +9,7 @@ import io.grpc.ManagedChannel
 import io.grpc.Metadata
 import io.grpc.MethodDescriptor
 import io.grpc.okhttp.OkHttpChannelBuilder
-import net.metacircular.engpad.proto.v1.EngPadSyncGrpcKt
+import net.metacircular.engpad.proto.v1.EngPadSyncServiceGrpcKt
 import java.util.concurrent.TimeUnit
 import javax.net.ssl.SSLContext
 import javax.net.ssl.TrustManagerFactory
@@ -33,8 +33,8 @@ class SyncClient(
         .intercept(AuthInterceptor(username, password))
         .build()
 
-    val stub: EngPadSyncGrpcKt.EngPadSyncCoroutineStub =
+    val stub: EngPadSyncServiceGrpcKt.EngPadSyncServiceCoroutineStub =
-        EngPadSyncGrpcKt.EngPadSyncCoroutineStub(channel)
+        EngPadSyncServiceGrpcKt.EngPadSyncServiceCoroutineStub(channel)
 
     fun shutdown() {
         channel.shutdown().awaitTermination(5, TimeUnit.SECONDS)

app/src/main/kotlin/net/metacircular/engpad/data/sync/SyncManager.kt

@@ -1,25 +1,19 @@
 package net.metacircular.engpad.data.sync
 
 import com.google.protobuf.ByteString
-import com.google.protobuf.timestamp
 import net.metacircular.engpad.data.db.NotebookDao
 import net.metacircular.engpad.data.db.PageDao
 import net.metacircular.engpad.data.db.StrokeDao
-import net.metacircular.engpad.data.db.toFloatArray
-import net.metacircular.engpad.proto.v1.DeleteNotebookRequestKt
-import net.metacircular.engpad.proto.v1.ListNotebooksRequestKt
 import net.metacircular.engpad.proto.v1.NotebookSummary
 import net.metacircular.engpad.proto.v1.deleteNotebookRequest
 import net.metacircular.engpad.proto.v1.listNotebooksRequest
-import net.metacircular.engpad.proto.v1.notebook
+import net.metacircular.engpad.proto.v1.pageData
-import net.metacircular.engpad.proto.v1.page
+import net.metacircular.engpad.proto.v1.strokeData
-import net.metacircular.engpad.proto.v1.stroke
 import net.metacircular.engpad.proto.v1.syncNotebookRequest
-import java.nio.ByteBuffer
-import java.nio.ByteOrder
 
 /**
- * Coordinates syncing local notebook data to the remote eng-pad sync service.
+ * Coordinates syncing local notebook data to the remote eng-pad-server.
+ * Serializes Room entities to protobuf and calls the gRPC sync service.
  */
 class SyncManager(
     private val client: SyncClient,
@@ -27,71 +21,43 @@ class SyncManager(
     private val pageDao: PageDao,
     private val strokeDao: StrokeDao,
 ) {
-    /**
-     * Upload a notebook with all its pages and strokes to the sync server.
-     */
     suspend fun syncNotebook(notebookId: Long) {
-        val localNotebook = notebookDao.getById(notebookId)
+        val notebook = notebookDao.getById(notebookId)
             ?: throw IllegalArgumentException("Notebook $notebookId not found")
         val localPages = pageDao.getByNotebookIdList(notebookId)
 
-        val protoNotebook = notebook {
+        val request = syncNotebookRequest {
-            id = localNotebook.id
+            this.notebookId = notebook.id
-            title = localNotebook.title
+            title = notebook.title
-            pageSize = localNotebook.pageSize
+            pageSize = notebook.pageSize
-            createdAt = millisToTimestamp(localNotebook.createdAt)
-            updatedAt = millisToTimestamp(localNotebook.updatedAt)
-            lastPageId = localNotebook.lastPageId
             for (localPage in localPages) {
                 val localStrokes = strokeDao.getByPageId(localPage.id)
-                pages += page {
+                pages += pageData {
-                    id = localPage.id
+                    pageId = localPage.id
-                    notebookId = localPage.notebookId
                     pageNumber = localPage.pageNumber
-                    createdAt = millisToTimestamp(localPage.createdAt)
                     for (localStroke in localStrokes) {
-                        strokes += stroke {
+                        strokes += strokeData {
-                            id = localStroke.id
-                            pageId = localStroke.pageId
                             penSize = localStroke.penSize
                             color = localStroke.color
+                            style = localStroke.style
                             pointData = ByteString.copyFrom(localStroke.pointData)
                             strokeOrder = localStroke.strokeOrder
-                            createdAt = millisToTimestamp(localStroke.createdAt)
-                            style = localStroke.style
                         }
                     }
                 }
             }
         }
-
-        val request = syncNotebookRequest {
-            notebook = protoNotebook
-        }
         client.stub.syncNotebook(request)
     }
 
-    /**
-     * Delete a notebook on the sync server.
-     */
     suspend fun deleteNotebook(notebookId: Long) {
-        val request = deleteNotebookRequest {
+        client.stub.deleteNotebook(deleteNotebookRequest {
             this.notebookId = notebookId
-        }
+        })
-        client.stub.deleteNotebook(request)
     }
 
-    /**
-     * List all notebooks available on the sync server.
-     */
     suspend fun listRemoteNotebooks(): List<NotebookSummary> {
-        val request = listNotebooksRequest {}
+        val response = client.stub.listNotebooks(listNotebooksRequest {})
-        val response = client.stub.listNotebooks(request)
         return response.notebooksList
     }
 }
-
-private fun millisToTimestamp(millis: Long) = timestamp {
-    seconds = millis / 1000
-    nanos = ((millis % 1000) * 1_000_000).toInt()
-}

app/src/main/proto/engpad/v1/sync.proto

@@ -1,24 +1,46 @@
 syntax = "proto3";
-
 package engpad.v1;
 
-option go_package = "git.wntrmute.dev/kyle/engpad/gen/engpad/v1;engpadv1";
+option go_package = "git.wntrmute.dev/kyle/eng-pad-server/gen/engpad/v1;engpadv1";
 option java_package = "net.metacircular.engpad.proto.v1";
 option java_multiple_files = true;
 
 import "google/protobuf/timestamp.proto";
 
-service EngPadSync {
+service EngPadSyncService {
     rpc SyncNotebook(SyncNotebookRequest) returns (SyncNotebookResponse);
     rpc DeleteNotebook(DeleteNotebookRequest) returns (DeleteNotebookResponse);
     rpc ListNotebooks(ListNotebooksRequest) returns (ListNotebooksResponse);
+    rpc CreateShareLink(CreateShareLinkRequest) returns (CreateShareLinkResponse);
+    rpc RevokeShareLink(RevokeShareLinkRequest) returns (RevokeShareLinkResponse);
+    rpc ListShareLinks(ListShareLinksRequest) returns (ListShareLinksResponse);
 }
 
 message SyncNotebookRequest {
-  Notebook notebook = 1;
+    int64 notebook_id = 1;
+    string title = 2;
+    string page_size = 3;
+    repeated PageData pages = 4;
 }
 
-message SyncNotebookResponse {}
+message PageData {
+    int64 page_id = 1;
+    int32 page_number = 2;
+    repeated StrokeData strokes = 3;
+}
+
+message StrokeData {
+    float pen_size = 1;
+    int32 color = 2;
+    string style = 3;
+    bytes point_data = 4;
+    int32 stroke_order = 5;
+}
+
+message SyncNotebookResponse {
+    int64 server_notebook_id = 1;
+    google.protobuf.Timestamp synced_at = 2;
+}
 
 message DeleteNotebookRequest {
     int64 notebook_id = 1;
@@ -32,39 +54,43 @@ message ListNotebooksResponse {
     repeated NotebookSummary notebooks = 1;
 }
 
-message Notebook {
-  int64 id = 1;
-  string title = 2;
-  string page_size = 3;
-  google.protobuf.Timestamp created_at = 4;
-  google.protobuf.Timestamp updated_at = 5;
-  int64 last_page_id = 6;
-  repeated Page pages = 7;
-}
-
 message NotebookSummary {
-  int64 id = 1;
+    int64 server_id = 1;
-  string title = 2;
+    int64 remote_id = 2;
-  string page_size = 3;
+    string title = 3;
-  google.protobuf.Timestamp updated_at = 4;
+    string page_size = 4;
     int32 page_count = 5;
+    google.protobuf.Timestamp synced_at = 6;
 }
 
-message Page {
+message CreateShareLinkRequest {
-  int64 id = 1;
+    int64 notebook_id = 1;
-  int64 notebook_id = 2;
+    int64 expires_in_seconds = 2;
-  int32 page_number = 3;
-  google.protobuf.Timestamp created_at = 4;
-  repeated Stroke strokes = 5;
 }
 
-message Stroke {
+message CreateShareLinkResponse {
-  int64 id = 1;
+    string token = 1;
-  int64 page_id = 2;
+    string url = 2;
-  float pen_size = 3;
+    google.protobuf.Timestamp expires_at = 3;
-  int32 color = 4;
+}
-  bytes point_data = 5;
+
-  int32 stroke_order = 6;
+message RevokeShareLinkRequest {
-  google.protobuf.Timestamp created_at = 7;
+    string token = 1;
-  string style = 8;
+}
+
+message RevokeShareLinkResponse {}
+
+message ListShareLinksRequest {
+    int64 notebook_id = 1;
+}
+
+message ListShareLinksResponse {
+    repeated ShareLinkInfo links = 1;
+}
+
+message ShareLinkInfo {
+    string token = 1;
+    string url = 2;
+    google.protobuf.Timestamp created_at = 3;
+    google.protobuf.Timestamp expires_at = 4;
 }

buf.yaml

@@ -0,0 +1,12 @@
+version: v2
+
+modules:
+  - path: app/src/main/proto
+
+lint:
+  use:
+    - STANDARD
+
+breaking:
+  use:
+    - FILE

gradle/libs.versions.toml

@@ -11,9 +11,9 @@ core-ktx = "1.18.0"
 activity-compose = "1.13.0"
 junit = "4.13.2"
 reorderable = "3.0.0"
-protobuf = "4.29.3"
+protobuf = "4.34.1"
-grpc = "1.69.0"
+grpc = "1.80.0"
-grpcKotlin = "1.4.1"
+grpcKotlin = "1.5.0"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "core-ktx" }