diff --git a/.gitignore b/.gitignore
index e69de29..a982e29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.conf
+overpush
+overpushd
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7eed5da
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,20 @@
+SUBDIRS :=	client core server
+SRCS :=		$(wildcard *.go $(foreach fd, $(SUBDIRS), $(fd)/*.go))
+TARGETS :=	overpush overpushd
+
+all: proto $(TARGETS)
+	go build ./...
+
+.PHONY: overpushd
+overpushd: $(SRCS) cmd/overpushd/main.go
+	go build ./cmd/overpushd
+
+.PHONY: overpush
+overpush: $(SRCS) cmd/overpush/main.go
+	go build ./cmd/overpush
+
+.PHONY: proto
+proto:
+	( cd proto && make )
+
+print-%: ; @echo '$(subst ','\'',$*=$($*))'
diff --git a/core/core.go b/core/core.go
index e408cd8..8ff9304 100644
--- a/core/core.go
+++ b/core/core.go
@@ -1,11 +1,12 @@
 package core
 
 import (
-	"fmt"
+	"strings"
 	"sync"
 	"time"
 
-	pb "git.wntrmute.dev/kyle/overpush/proto"
+	"git.wntrmute.dev/kyle/goutils/backoff"
+	"git.wntrmute.dev/kyle/goutils/log"
 	"github.com/gregdel/pushover"
 )
 
@@ -17,15 +18,21 @@ const MessageBuffer = 16
 type Account struct {
 	p            *pushover.Pushover
 	nextTransmit time.Time
-	q            chan pb.Message
+	q            chan *Message
 	lock         *sync.Mutex
+	bo           *backoff.Backoff
+}
+
+func (a *Account) Queue() chan<- *Message {
+	return a.q
 }
 
 func NewAccount(token string) *Account {
 	return &Account{
 		p:    pushover.New(token),
-		q:    make(chan pb.Message, MessageBuffer),
+		q:    make(chan *Message, MessageBuffer),
 		lock: &sync.Mutex{},
+		bo:   backoff.New(4*time.Hour, 5*time.Second),
 	}
 }
 
@@ -40,19 +47,59 @@ func (a *Account) UpdateLimit(limit *pushover.Limit) {
 
 func (a *Account) Receive() {
 	for {
-		for {
-			if a.nextTransmit.After(time.Now()) {
-				sleep := time.Until(a.nextTransmit)
-				time.Sleep(sleep)
-			} else {
-				break
-			}
-		}
 		m, closed := <-a.q
-		if closed {
+		if !closed {
 			panic("channel closed")
 		}
 
-		fmt.Println(m.String())
+		a.Push(m)
 	}
 }
+
+func (a *Account) push(m *pushover.Message, r *pushover.Recipient) (*pushover.Response, error) {
+	for time.Now().Before(a.nextTransmit) {
+		log.Infof("delaying until next transmit: %s", a.nextTransmit.Format(time.DateTime))
+		wait := time.Until(a.nextTransmit)
+		time.Sleep(wait)
+	}
+
+	resp, err := a.p.SendMessage(m, r)
+	if err != nil {
+		return resp, err
+	}
+
+	if resp.Limit != nil {
+		log.Debugf("API limits: %d / %d remaining", resp.Limit.Remaining, resp.Limit.Total)
+		log.Debugf("API next reset: %s", resp.Limit.NextReset.Format(time.DateTime))
+		a.UpdateLimit(resp.Limit)
+	}
+
+	return resp, nil
+}
+
+func (a *Account) Push(m *Message) {
+	for i, r := range m.r {
+		recipient := pushover.NewRecipient(r)
+		resp, err := a.push(m.m, recipient)
+		if err != nil {
+			// if there's an error, log it, clean up the recipient list.
+			log.Errf("core: failed to send message: %s", err)
+
+			if resp.Status/100 == 4 {
+				log.Errf("core: the Pushover API reported the following errors: %s", strings.Join(resp.Errors, ", "))
+				log.Infoln("core: 4XX error from Pushover API; not retrying - dropping the message")
+				return
+			}
+			log.Infoln("core: requeueing message that failed to send")
+			log.Infoln("core: backing off")
+			m.r = m.r[i:]
+			a.q <- m
+			time.Sleep(a.bo.Duration())
+			return
+		}
+
+		a.bo.Reset()
+	}
+
+	return
+}
diff --git a/core/message.go b/core/message.go
new file mode 100644
index 0000000..def35e4
--- /dev/null
+++ b/core/message.go
@@ -0,0 +1,72 @@
+package core
+
+import (
+	"bytes"
+	"time"
+
+	"git.wntrmute.dev/kyle/goutils/log"
+	pb "git.wntrmute.dev/kyle/overpush/proto"
+	"github.com/gregdel/pushover"
+)
+
+var priorityMap = map[pb.Priority]int{
+	pb.Priority_PriorityInvalid:   pushover.PriorityNormal,
+	pb.Priority_PriorityLowest:    pushover.PriorityLowest,
+	pb.Priority_PriorityLow:       pushover.PriorityLow,
+	pb.Priority_PriorityNormal:    pushover.PriorityNormal,
+	pb.Priority_PriorityHigh:      pushover.PriorityHigh,
+	pb.Priority_PriorityEmergency: pushover.PriorityEmergency,
+}
+
+type Message struct {
+	m   *pushover.Message
+	r   []string
+	buf *bytes.Buffer
+}
+
+func (m *Message) Close() error {
+	if m.buf != nil {
+		m.buf.Reset()
+	}
+	return nil
+}
+
+func NewMessage(pbmsg *pb.Message) *Message {
+	msg := &Message{
+		m: &pushover.Message{
+			Message: pbmsg.Text,
+		},
+	}
+
+	if t := pbmsg.GetTimestamp(); t != 0 {
+		msg.m.Timestamp = t
+	} else {
+		msg.m.Timestamp = time.Now().Unix()
+	}
+
+	priority, ok := priorityMap[pbmsg.Priority]
+	if !ok {
+		log.Warningln("core: message has an unknown priority; marking it as normal priority")
+		priority = pushover.PriorityNormal
+	}
+	msg.m.Priority = priority
+
+	if url := pbmsg.GetUrl(); url != nil {
+		msg.m.URL = url.GetLink()
+		msg.m.URLTitle = url.GetTitle()
+	}
+
+	if attachment := pbmsg.GetAttachment(); attachment != nil {
+		msg.buf = bytes.NewBuffer(attachment)
+		if err := msg.m.AddAttachment(msg.buf); err != nil {
+			log.Warningf("core: adding attachment to message failed: %s", err)
+			if pbmsg.Priority == pb.Priority_PriorityLowest {
+				return nil
+			}
+			log.Warningln("core: continuing without attachment")
+		}
+	}
+
+	msg.r = pbmsg.GetRecipients()
+	return msg
+}
diff --git a/go.mod b/go.mod
index 4aa4a21..1307ccd 100644
--- a/go.mod
+++ b/go.mod
@@ -3,12 +3,20 @@ module git.wntrmute.dev/kyle/overpush
 go 1.20
 
 require (
+	git.wntrmute.dev/kyle/goutils v1.7.2
+	github.com/gregdel/pushover v1.2.0
+	google.golang.org/appengine v1.6.7
+	google.golang.org/grpc v1.55.0
+	google.golang.org/protobuf v1.30.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/gregdel/pushover v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/hashicorp/go-syslog v1.0.0 // indirect
 	golang.org/x/net v0.8.0 // indirect
 	golang.org/x/sys v0.6.0 // indirect
 	golang.org/x/text v0.8.0 // indirect
 	google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect
-	google.golang.org/grpc v1.55.0 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 310941a..b7b42d3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,16 +1,34 @@
+git.wntrmute.dev/kyle/goutils v1.7.2 h1:0y1k4wXfNgFhwSE7TifmnYNaySUgGzU96o4YY2KYtQI=
+git.wntrmute.dev/kyle/goutils v1.7.2/go.mod h1:1PGn83Ac98KWyI6yfpCVyP1Ji61PX6lFpROxY+IoTJg=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
 github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gregdel/pushover v1.2.0 h1:SLnpvJijUyEZvkJNyrldGhFhryYgQYlThSLpB5Oqt5k=
 github.com/gregdel/pushover v1.2.0/go.mod h1:EcaO66Nn1StkpEm1iKtBTV3d2A16SoMsVER1PthX7to=
+github.com/hashicorp/go-syslog v1.0.0 h1:KaodqZuhUoZereWVIYmpUgZysurB1kBLX2j0MwMrUAE=
+github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
+google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 h1:DdoeryqhaXp1LtT/emMP1BRJPHHKFi5akj/nbx/zNTA=
 google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
 google.golang.org/grpc v1.55.0 h1:3Oj82/tFSCeUrRTg/5E/7d/W5A1tj6Ky1ABAuZuv5ag=
diff --git a/proto/message.pb.go b/proto/message.pb.go
index e88cddd..de73484 100644
--- a/proto/message.pb.go
+++ b/proto/message.pb.go
@@ -20,55 +20,55 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type AlertType int32
+type MessageType int32
 
 const (
-	AlertType_AlertTypeInvalid               AlertType = 0
-	AlertType_AlertTypeMessage               AlertType = 1
-	AlertType_AlertTypeMessageWithTitle      AlertType = 2
-	AlertType_AlertTypeMessageWithAttachment AlertType = 3
+	MessageType_MessageTypeInvalid               MessageType = 0
+	MessageType_MessageTypeMessage               MessageType = 1
+	MessageType_MessageTypeMessageWithTitle      MessageType = 2
+	MessageType_MessageTypeMessageWithAttachment MessageType = 3
 )
 
-// Enum value maps for AlertType.
+// Enum value maps for MessageType.
 var (
-	AlertType_name = map[int32]string{
-		0: "AlertTypeInvalid",
-		1: "AlertTypeMessage",
-		2: "AlertTypeMessageWithTitle",
-		3: "AlertTypeMessageWithAttachment",
+	MessageType_name = map[int32]string{
+		0: "MessageTypeInvalid",
+		1: "MessageTypeMessage",
+		2: "MessageTypeMessageWithTitle",
+		3: "MessageTypeMessageWithAttachment",
 	}
-	AlertType_value = map[string]int32{
-		"AlertTypeInvalid":               0,
-		"AlertTypeMessage":               1,
-		"AlertTypeMessageWithTitle":      2,
-		"AlertTypeMessageWithAttachment": 3,
+	MessageType_value = map[string]int32{
+		"MessageTypeInvalid":               0,
+		"MessageTypeMessage":               1,
+		"MessageTypeMessageWithTitle":      2,
+		"MessageTypeMessageWithAttachment": 3,
 	}
 )
 
-func (x AlertType) Enum() *AlertType {
-	p := new(AlertType)
+func (x MessageType) Enum() *MessageType {
+	p := new(MessageType)
 	*p = x
 	return p
 }
 
-func (x AlertType) String() string {
+func (x MessageType) String() string {
 	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
 }
 
-func (AlertType) Descriptor() protoreflect.EnumDescriptor {
+func (MessageType) Descriptor() protoreflect.EnumDescriptor {
 	return file_message_proto_enumTypes[0].Descriptor()
 }
 
-func (AlertType) Type() protoreflect.EnumType {
+func (MessageType) Type() protoreflect.EnumType {
 	return &file_message_proto_enumTypes[0]
 }
 
-func (x AlertType) Number() protoreflect.EnumNumber {
+func (x MessageType) Number() protoreflect.EnumNumber {
 	return protoreflect.EnumNumber(x)
 }
 
-// Deprecated: Use AlertType.Descriptor instead.
-func (AlertType) EnumDescriptor() ([]byte, []int) {
+// Deprecated: Use MessageType.Descriptor instead.
+func (MessageType) EnumDescriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{0}
 }
 
@@ -135,14 +135,15 @@ type Message struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Timestamp  uint64    `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
-	Type       AlertType `protobuf:"varint,2,opt,name=type,proto3,enum=overpush.AlertType" json:"type,omitempty"`
-	Priority   Priority  `protobuf:"varint,3,opt,name=priority,proto3,enum=overpush.Priority" json:"priority,omitempty"`
-	Recipients []string  `protobuf:"bytes,4,rep,name=recipients,proto3" json:"recipients,omitempty"`
-	StreamName string    `protobuf:"bytes,5,opt,name=stream_name,json=streamName,proto3" json:"stream_name,omitempty"` // string transmitter = 6;
-	Title      string    `protobuf:"bytes,8,opt,name=title,proto3" json:"title,omitempty"`
-	Text       string    `protobuf:"bytes,9,opt,name=text,proto3" json:"text,omitempty"`
-	Attachment []byte    `protobuf:"bytes,10,opt,name=attachment,proto3" json:"attachment,omitempty"`
+	Timestamp  int64       `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Type       MessageType `protobuf:"varint,2,opt,name=type,proto3,enum=overpush.MessageType" json:"type,omitempty"`
+	Priority   Priority    `protobuf:"varint,3,opt,name=priority,proto3,enum=overpush.Priority" json:"priority,omitempty"`
+	Recipients []string    `protobuf:"bytes,4,rep,name=recipients,proto3" json:"recipients,omitempty"`
+	StreamName string      `protobuf:"bytes,5,opt,name=stream_name,json=streamName,proto3" json:"stream_name,omitempty"` // string transmitter = 6;
+	Title      string      `protobuf:"bytes,8,opt,name=title,proto3" json:"title,omitempty"`
+	Text       string      `protobuf:"bytes,9,opt,name=text,proto3" json:"text,omitempty"`
+	Attachment []byte      `protobuf:"bytes,10,opt,name=attachment,proto3" json:"attachment,omitempty"`
+	Url        *URL        `protobuf:"bytes,11,opt,name=url,proto3" json:"url,omitempty"`
 }
 
 func (x *Message) Reset() {
@@ -177,18 +178,18 @@ func (*Message) Descriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *Message) GetTimestamp() uint64 {
+func (x *Message) GetTimestamp() int64 {
 	if x != nil {
 		return x.Timestamp
 	}
 	return 0
 }
 
-func (x *Message) GetType() AlertType {
+func (x *Message) GetType() MessageType {
 	if x != nil {
 		return x.Type
 	}
-	return AlertType_AlertTypeInvalid
+	return MessageType_MessageTypeInvalid
 }
 
 func (x *Message) GetPriority() Priority {
@@ -233,45 +234,55 @@ func (x *Message) GetAttachment() []byte {
 	return nil
 }
 
+func (x *Message) GetUrl() *URL {
+	if x != nil {
+		return x.Url
+	}
+	return nil
+}
+
 var File_message_proto protoreflect.FileDescriptor
 
 var file_message_proto_rawDesc = []byte{
 	0x0a, 0x0d, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
-	0x08, 0x6f, 0x76, 0x65, 0x72, 0x70, 0x75, 0x73, 0x68, 0x22, 0x8b, 0x02, 0x0a, 0x07, 0x4d, 0x65,
-	0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x1c, 0x0a, 0x09, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61,
-	0x6d, 0x70, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x09, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74,
-	0x61, 0x6d, 0x70, 0x12, 0x27, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28,
-	0x0e, 0x32, 0x13, 0x2e, 0x6f, 0x76, 0x65, 0x72, 0x70, 0x75, 0x73, 0x68, 0x2e, 0x41, 0x6c, 0x65,
-	0x72, 0x74, 0x54, 0x79, 0x70, 0x65, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x2e, 0x0a, 0x08,
-	0x70, 0x72, 0x69, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x12,
-	0x2e, 0x6f, 0x76, 0x65, 0x72, 0x70, 0x75, 0x73, 0x68, 0x2e, 0x50, 0x72, 0x69, 0x6f, 0x72, 0x69,
-	0x74, 0x79, 0x52, 0x08, 0x70, 0x72, 0x69, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x12, 0x1e, 0x0a, 0x0a,
-	0x72, 0x65, 0x63, 0x69, 0x70, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28, 0x09,
-	0x52, 0x0a, 0x72, 0x65, 0x63, 0x69, 0x70, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x1f, 0x0a, 0x0b,
-	0x73, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x5f, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x05, 0x20, 0x01, 0x28,
-	0x09, 0x52, 0x0a, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x14, 0x0a,
-	0x05, 0x74, 0x69, 0x74, 0x6c, 0x65, 0x18, 0x08, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x74, 0x69,
-	0x74, 0x6c, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x65, 0x78, 0x74, 0x18, 0x09, 0x20, 0x01, 0x28,
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+	0x42, 0x06, 0x5a, 0x04, 0x2e, 0x3b, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -289,18 +300,20 @@ func file_message_proto_rawDescGZIP() []byte {
 var file_message_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
 var file_message_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
 var file_message_proto_goTypes = []interface{}{
-	(AlertType)(0),  // 0: overpush.AlertType
-	(Priority)(0),   // 1: overpush.Priority
-	(*Message)(nil), // 2: overpush.Message
+	(MessageType)(0), // 0: overpush.MessageType
+	(Priority)(0),    // 1: overpush.Priority
+	(*Message)(nil),  // 2: overpush.Message
+	(*URL)(nil),      // 3: overpush.URL
 }
 var file_message_proto_depIdxs = []int32{
-	0, // 0: overpush.Message.type:type_name -> overpush.AlertType
+	0, // 0: overpush.Message.type:type_name -> overpush.MessageType
 	1, // 1: overpush.Message.priority:type_name -> overpush.Priority
-	2, // [2:2] is the sub-list for method output_type
-	2, // [2:2] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
+	3, // 2: overpush.Message.url:type_name -> overpush.URL
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_message_proto_init() }
@@ -308,6 +321,7 @@ func file_message_proto_init() {
 	if File_message_proto != nil {
 		return
 	}
+	file_url_proto_init()
 	if !protoimpl.UnsafeEnabled {
 		file_message_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Message); i {
diff --git a/proto/message.proto b/proto/message.proto
index 5911716..2a37eb7 100644
--- a/proto/message.proto
+++ b/proto/message.proto
@@ -2,12 +2,13 @@ syntax = 'proto3';
 package overpush;
 
 option go_package = '.;pb';
+import 'url.proto';
 
-enum AlertType {
-    AlertTypeInvalid = 0;
-    AlertTypeMessage = 1;
-    AlertTypeMessageWithTitle = 2;
-    AlertTypeMessageWithAttachment = 3;
+enum MessageType {
+    MessageTypeInvalid = 0;
+    MessageTypeMessage = 1;
+    MessageTypeMessageWithTitle = 2;
+    MessageTypeMessageWithAttachment = 3;
 }
 
 enum Priority {
@@ -20,8 +21,8 @@ enum Priority {
 }
 
 message Message {
-    uint64 timestamp = 1;
-    AlertType type = 2;
+    int64 timestamp = 1;
+    MessageType type = 2;
     Priority priority = 3;
     repeated string recipients = 4;
     string stream_name = 5;
@@ -30,4 +31,5 @@ message Message {
     string title = 8;
     string text  = 9;
     bytes  attachment = 10;
+    URL    url = 11;
 }
diff --git a/proto/response.pb.go b/proto/response.pb.go
index c95c194..5dc7c3d 100644
--- a/proto/response.pb.go
+++ b/proto/response.pb.go
@@ -20,55 +20,55 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type TLDR int32
+type Status int32
 
 const (
-	TLDR_TLDRInvalid TLDR = 0
-	TLDR_TLDRSent    TLDR = 1
-	TLDR_TLDRQueued  TLDR = 2
-	TLDR_TLDRFailed  TLDR = 3
+	Status_StatusInvalid Status = 0
+	Status_StatusSent    Status = 1
+	Status_StatusQueued  Status = 2
+	Status_StatusFailed  Status = 3
 )
 
-// Enum value maps for TLDR.
+// Enum value maps for Status.
 var (
-	TLDR_name = map[int32]string{
-		0: "TLDRInvalid",
-		1: "TLDRSent",
-		2: "TLDRQueued",
-		3: "TLDRFailed",
+	Status_name = map[int32]string{
+		0: "StatusInvalid",
+		1: "StatusSent",
+		2: "StatusQueued",
+		3: "StatusFailed",
 	}
-	TLDR_value = map[string]int32{
-		"TLDRInvalid": 0,
-		"TLDRSent":    1,
-		"TLDRQueued":  2,
-		"TLDRFailed":  3,
+	Status_value = map[string]int32{
+		"StatusInvalid": 0,
+		"StatusSent":    1,
+		"StatusQueued":  2,
+		"StatusFailed":  3,
 	}
 )
 
-func (x TLDR) Enum() *TLDR {
-	p := new(TLDR)
+func (x Status) Enum() *Status {
+	p := new(Status)
 	*p = x
 	return p
 }
 
-func (x TLDR) String() string {
+func (x Status) String() string {
 	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
 }
 
-func (TLDR) Descriptor() protoreflect.EnumDescriptor {
+func (Status) Descriptor() protoreflect.EnumDescriptor {
 	return file_response_proto_enumTypes[0].Descriptor()
 }
 
-func (TLDR) Type() protoreflect.EnumType {
+func (Status) Type() protoreflect.EnumType {
 	return &file_response_proto_enumTypes[0]
 }
 
-func (x TLDR) Number() protoreflect.EnumNumber {
+func (x Status) Number() protoreflect.EnumNumber {
 	return protoreflect.EnumNumber(x)
 }
 
-// Deprecated: Use TLDR.Descriptor instead.
-func (TLDR) EnumDescriptor() ([]byte, []int) {
+// Deprecated: Use Status.Descriptor instead.
+func (Status) EnumDescriptor() ([]byte, []int) {
 	return file_response_proto_rawDescGZIP(), []int{0}
 }
 
@@ -77,9 +77,9 @@ type Response struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Timestamp uint64   `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Timestamp int64    `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
 	Id        string   `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
-	Status    int32    `protobuf:"varint,3,opt,name=status,proto3" json:"status,omitempty"`
+	Status    Status   `protobuf:"varint,3,opt,name=status,proto3,enum=overpush.Status" json:"status,omitempty"`
 	Errors    []string `protobuf:"bytes,4,rep,name=errors,proto3" json:"errors,omitempty"` // optional string receipt = 5;
 }
 
@@ -115,7 +115,7 @@ func (*Response) Descriptor() ([]byte, []int) {
 	return file_response_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *Response) GetTimestamp() uint64 {
+func (x *Response) GetTimestamp() int64 {
 	if x != nil {
 		return x.Timestamp
 	}
@@ -129,11 +129,11 @@ func (x *Response) GetId() string {
 	return ""
 }
 
-func (x *Response) GetStatus() int32 {
+func (x *Response) GetStatus() Status {
 	if x != nil {
 		return x.Status
 	}
-	return 0
+	return Status_StatusInvalid
 }
 
 func (x *Response) GetErrors() []string {
@@ -147,19 +147,21 @@ var File_response_proto protoreflect.FileDescriptor
 
 var file_response_proto_rawDesc = []byte{
 	0x0a, 0x0e, 0x72, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x12, 0x08, 0x6f, 0x76, 0x65, 0x72, 0x70, 0x75, 0x73, 0x68, 0x22, 0x68, 0x0a, 0x08, 0x52, 0x65,
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+	0x12, 0x11, 0x0a, 0x0d, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x49, 0x6e, 0x76, 0x61, 0x6c, 0x69,
+	0x64, 0x10, 0x00, 0x12, 0x0e, 0x0a, 0x0a, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x53, 0x65, 0x6e,
+	0x74, 0x10, 0x01, 0x12, 0x10, 0x0a, 0x0c, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x51, 0x75, 0x65,
+	0x75, 0x65, 0x64, 0x10, 0x02, 0x12, 0x10, 0x0a, 0x0c, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x46,
+	0x61, 0x69, 0x6c, 0x65, 0x64, 0x10, 0x03, 0x42, 0x06, 0x5a, 0x04, 0x2e, 0x3b, 0x70, 0x62, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -177,15 +179,16 @@ func file_response_proto_rawDescGZIP() []byte {
 var file_response_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_response_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
 var file_response_proto_goTypes = []interface{}{
-	(TLDR)(0),        // 0: overpush.TLDR
+	(Status)(0),      // 0: overpush.Status
 	(*Response)(nil), // 1: overpush.Response
 }
 var file_response_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
+	0, // 0: overpush.Response.status:type_name -> overpush.Status
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_response_proto_init() }
diff --git a/proto/response.proto b/proto/response.proto
index 47b7953..01b0cd1 100644
--- a/proto/response.proto
+++ b/proto/response.proto
@@ -3,17 +3,17 @@ package overpush;
 
 option go_package = '.;pb';
 
-enum TLDR {
-    TLDRInvalid = 0;
-    TLDRSent = 1;
-    TLDRQueued = 2;
-    TLDRFailed = 3;
+enum Status {
+    StatusInvalid = 0;
+    StatusSent = 1;
+    StatusQueued = 2;
+    StatusFailed = 3;
 }
 
 message Response {
-    uint64 timestamp = 1;
+    int64 timestamp = 1;
     string id = 2;
-    int32 status = 3;
+    Status status = 3;
     repeated string errors = 4;
     // optional string receipt = 5;
-}
\ No newline at end of file
+}
diff --git a/proto/url.pb.go b/proto/url.pb.go
new file mode 100644
index 0000000..a1993d5
--- /dev/null
+++ b/proto/url.pb.go
@@ -0,0 +1,150 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.12.4
+// source: url.proto
+
+package pb
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type URL struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Title string `protobuf:"bytes,1,opt,name=title,proto3" json:"title,omitempty"`
+	Link  string `protobuf:"bytes,2,opt,name=link,proto3" json:"link,omitempty"`
+}
+
+func (x *URL) Reset() {
+	*x = URL{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_url_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *URL) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*URL) ProtoMessage() {}
+
+func (x *URL) ProtoReflect() protoreflect.Message {
+	mi := &file_url_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use URL.ProtoReflect.Descriptor instead.
+func (*URL) Descriptor() ([]byte, []int) {
+	return file_url_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *URL) GetTitle() string {
+	if x != nil {
+		return x.Title
+	}
+	return ""
+}
+
+func (x *URL) GetLink() string {
+	if x != nil {
+		return x.Link
+	}
+	return ""
+}
+
+var File_url_proto protoreflect.FileDescriptor
+
+var file_url_proto_rawDesc = []byte{
+	0x0a, 0x09, 0x75, 0x72, 0x6c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x08, 0x6f, 0x76, 0x65,
+	0x72, 0x70, 0x75, 0x73, 0x68, 0x22, 0x2f, 0x0a, 0x03, 0x55, 0x52, 0x4c, 0x12, 0x14, 0x0a, 0x05,
+	0x74, 0x69, 0x74, 0x6c, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x74, 0x69, 0x74,
+	0x6c, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x6c, 0x69, 0x6e, 0x6b, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x04, 0x6c, 0x69, 0x6e, 0x6b, 0x42, 0x06, 0x5a, 0x04, 0x2e, 0x3b, 0x70, 0x62, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_url_proto_rawDescOnce sync.Once
+	file_url_proto_rawDescData = file_url_proto_rawDesc
+)
+
+func file_url_proto_rawDescGZIP() []byte {
+	file_url_proto_rawDescOnce.Do(func() {
+		file_url_proto_rawDescData = protoimpl.X.CompressGZIP(file_url_proto_rawDescData)
+	})
+	return file_url_proto_rawDescData
+}
+
+var file_url_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_url_proto_goTypes = []interface{}{
+	(*URL)(nil), // 0: overpush.URL
+}
+var file_url_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_url_proto_init() }
+func file_url_proto_init() {
+	if File_url_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_url_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*URL); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_url_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_url_proto_goTypes,
+		DependencyIndexes: file_url_proto_depIdxs,
+		MessageInfos:      file_url_proto_msgTypes,
+	}.Build()
+	File_url_proto = out.File
+	file_url_proto_rawDesc = nil
+	file_url_proto_goTypes = nil
+	file_url_proto_depIdxs = nil
+}
diff --git a/proto/url.proto b/proto/url.proto
new file mode 100644
index 0000000..679c616
--- /dev/null
+++ b/proto/url.proto
@@ -0,0 +1,9 @@
+syntax = 'proto3';
+package overpush;
+
+option go_package = '.;pb';
+
+message URL {
+	string title = 1;
+	string link  = 2;
+}
diff --git a/server/server.go b/server/server.go
new file mode 100644
index 0000000..1728096
--- /dev/null
+++ b/server/server.go
@@ -0,0 +1,89 @@
+package server
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"time"
+
+	"git.wntrmute.dev/kyle/goutils/config"
+	"git.wntrmute.dev/kyle/goutils/log"
+	"git.wntrmute.dev/kyle/overpush/core"
+	pb "git.wntrmute.dev/kyle/overpush/proto"
+	"github.com/google/uuid"
+	"google.golang.org/grpc"
+)
+
+type Service struct {
+	Default  *core.Account
+	Accounts map[string]*core.Account
+	address  string
+	Listener net.TCPListener
+
+	// omg thank you for mentioning this in the docs ever you fucking asshats
+	pb.UnimplementedOverpushServer
+}
+
+func (svc *Service) QueueMessage(ctx context.Context, msg *pb.Message) (*pb.Response, error) {
+	var acct *core.Account
+	var ok bool
+
+	log.Debugf("message %d queued", msg.Timestamp)
+
+	stream := msg.GetStreamName()
+	if stream == "" {
+		acct = svc.Default
+	} else if acct, ok = svc.Accounts[stream]; !ok {
+		return &pb.Response{
+			Timestamp: time.Now().Unix(),
+			Id:        uuid.NewString(),
+			Status:    pb.Status_StatusFailed,
+			Errors:    []string{fmt.Sprintf("server: invalid stream name %s", stream)},
+		}, errors.New("service: invalid stream name " + stream)
+	}
+
+	qmsg := core.NewMessage(msg)
+	if qmsg == nil {
+		log.Err("server: invalid message received, dropping")
+		return &pb.Response{
+			Timestamp: time.Now().Unix(),
+			Id:        uuid.NewString(),
+			Status:    pb.Status_StatusFailed,
+			Errors:    []string{"service: invalid message"},
+		}, errors.New("server: invalid message received, dropping")
+	}
+
+	acct.Queue() <- qmsg
+	return &pb.Response{
+		Timestamp: time.Now().Unix(),
+		Id:        uuid.NewString(),
+		Status:    pb.Status_StatusQueued,
+	}, nil
+}
+
+func New() (*Service, error) {
+	srv := &Service{
+		address: config.GetDefault("address", "127.0.0.1:5000"),
+	}
+
+	defaultToken := config.Get("primary_token")
+	if defaultToken == "" {
+		return nil, errors.New("server: no primary token defined")
+	}
+	srv.Default = core.NewAccount(defaultToken)
+	return srv, nil
+}
+
+func Run(srv *Service) error {
+	var opts []grpc.ServerOption
+
+	lsn, err := net.Listen("tcp4", srv.address)
+	if err != nil {
+		return fmt.Errorf("server: failed to set up listener: %w", err)
+	}
+
+	grpcServer := grpc.NewServer(opts...)
+	pb.RegisterOverpushServer(grpcServer, srv)
+	return grpcServer.Serve(lsn)
+}