Add agent-deck package

packages/agent-deck/package.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  git,
+  tmux,
+  makeWrapper,
+}:
+buildGoModule rec {
+  pname = "agent-deck";
+  version = "0.15.0";
+
+  src = fetchFromGitHub {
+    owner = "asheshgoplani";
+    repo = "agent-deck";
+    rev = "v${version}";
+    hash = "sha256-R/hDPhb+CtGXreHaKlSH2E6QEpfigj41Sq3BDVxLtaw=";
+  };
+
+  vendorHash = "sha256-k0jRlsFmBJNbfX3u2UQlnx/Z25KII8fYegU+Z77/EO0=";
+
+  subPackages = ["cmd/agent-deck"];
+
+  nativeBuildInputs = [makeWrapper];
+  nativeCheckInputs = [git];
+
+  postInstall = ''
+    wrapProgram $out/bin/agent-deck \
+      --prefix PATH : ${lib.makeBinPath [tmux]}
+  '';
+
+  meta = {
+    description = "Terminal-based session manager for AI coding agents";
+    homepage = "https://github.com/asheshgoplani/agent-deck";
+    license = lib.licenses.mit;
+    mainProgram = "agent-deck";
+  };
+}