{
  description = "mcp - Metacircular Control Plane";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
  };

  outputs =
    { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};
      version = "0.6.0";
    in
    {
      packages.${system} = {
        default = pkgs.buildGoModule {
          pname = "mcp";
          inherit version;
          src = ./.;
          vendorHash = null;
          subPackages = [
            "cmd/mcp"
          ];
          ldflags = [
            "-s"
            "-w"
            "-X main.version=${version}"
          ];
          postInstall = ''
            mkdir -p $out/share/zsh/site-functions
            mkdir -p $out/share/bash-completion/completions
            mkdir -p $out/share/fish/vendor_completions.d
            $out/bin/mcp completion zsh > $out/share/zsh/site-functions/_mcp
            $out/bin/mcp completion bash > $out/share/bash-completion/completions/mcp
            $out/bin/mcp completion fish > $out/share/fish/vendor_completions.d/mcp.fish
          '';
        };

        mcp-agent = pkgs.buildGoModule {
          pname = "mcp-agent";
          inherit version;
          src = ./.;
          vendorHash = null;
          subPackages = [
            "cmd/mcp-agent"
          ];
          ldflags = [
            "-s"
            "-w"
            "-X main.version=${version}"
          ];
        };
      };
    };
}