{
  lib,
  stdenv,
  fetchFromGitHub,
  bun,
  nodejs,
  ast-grep,
  makeWrapper,
}:

let
  version = "3.12.3";

  # Fixed-output derivation to fetch node_modules with network access
  nodeModules = stdenv.mkDerivation {
    name = "oh-my-opencode-node-modules-${version}";

    src = fetchFromGitHub {
      owner = "code-yeongyu";
      repo = "oh-my-openagent";
      rev = "v${version}";
      hash = "sha256-8iIpKs0R42NclKqNLfllByHNcKljRn33W8Ij7h0wYfw=";
    };

    nativeBuildInputs = [
      bun
      nodejs
    ];

    buildPhase = ''
      export HOME=$TMPDIR
      export BUN_INSTALL_CACHE_DIR=$TMPDIR/bun-cache
      # Install without optional dependencies (platform-specific binaries)
      # We'll use ast-grep from nixpkgs instead
      # Also ignore scripts to prevent build scripts from running with bad shebangs
      bun install --frozen-lockfile --no-progress --no-optional --ignore-scripts
    '';

    installPhase = ''
      mkdir -p $out
      cp -r node_modules $out/
    '';

    dontFixup = true;

    outputHashMode = "recursive";
    outputHashAlgo = "sha256";
    outputHash = "sha256-P49FnMozYS1oTAfQEzh1bfayE0MiTJHAVcWcmsYc8I8=";
  };
in
stdenv.mkDerivation rec {
  pname = "oh-my-opencode";
  inherit version;

  src = fetchFromGitHub {
    owner = "code-yeongyu";
    repo = "oh-my-openagent";
    rev = "v${version}";
    hash = "sha256-8iIpKs0R42NclKqNLfllByHNcKljRn33W8Ij7h0wYfw=";
  };

  nativeBuildInputs = [
    bun
    nodejs
    ast-grep
    makeWrapper
  ];

  configurePhase = ''
    runHook preConfigure

    export HOME=$TMPDIR
    # Copy pre-fetched node_modules
    cp -r ${nodeModules}/node_modules .
    chmod -R u+w node_modules

    # Patch shebangs
    patchShebangs node_modules/.bin

    runHook postConfigure
  '';

  buildPhase = ''
    runHook preBuild

    # Make ast-grep available during build
    export PATH="${ast-grep}/bin:$PATH"

    # Build: bun build src/index.ts --outdir dist --target bun --format esm --external @ast-grep/napi 
    # && tsc --emitDeclarationOnly 
    # && bun build src/cli/index.ts --outdir dist/cli --target bun --format esm --external @ast-grep/napi 
    # && bun run build:schema

    # Run just the bun build commands, skip tsc and schema generation
    bun build src/index.ts --outdir dist --target bun --format esm --external @ast-grep/napi
    bun build src/cli/index.ts --outdir dist/cli --target bun --format esm --external @ast-grep/napi

    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall

    mkdir -p $out/lib/node_modules/${pname}
    cp -r dist package.json bin $out/lib/node_modules/${pname}/
    cp README.md LICENSE $out/lib/node_modules/${pname}/ 2>/dev/null || true

    # The plugin includes a CLI - wrap it to ensure ast-grep is available
    mkdir -p $out/bin
    makeWrapper $out/lib/node_modules/${pname}/bin/oh-my-opencode.js \
      $out/bin/oh-my-opencode \
      --prefix PATH : ${ast-grep}/bin \
      --set NODE_PATH $out/lib/node_modules

    runHook postInstall
  '';

  meta = {
    description = "Advanced orchestration plugin for OpenCode";
    homepage = "https://github.com/code-yeongyu/oh-my-openagent";
    license = lib.licenses.unfree;
    mainProgram = "oh-my-opencode";
  };
}