{
  appimageTools,
  fetchurl,
  lib,
  nodejs,
  uv,
  python3,
  nix-update-script,
}: let
  pname = "eigent";
  version = "0.0.89";
  src = fetchurl {
    url = "https://github.com/eigent-ai/eigent/releases/download/v${version}/Eigent-${version}.AppImage";
    hash = "sha256-9KuiFjegfXhCu1W/FCinWX4ae/DsNPudeBcXFfW18Hc=";
  };
  appimageContents = appimageTools.extractType2 {inherit pname version src;};
in
  appimageTools.wrapType2 {
    inherit pname version src;

    extraPkgs = _: [
      nodejs
      uv
      python3
    ];

    # Runs before bubblewrap launches — sets up writable state for the sandbox.
    extraPreBwrapCmds = ''
      # eigent writes to multiple dirs under resources/ at runtime:
      #   prebuilt/  → pyvenv.cfg, .terminal_venv_fixed sentinel
      #   backend/   → creates runtime/ dir for temporary state
      # Nix store is read-only → EROFS. Copy to writable location on first
      # launch (or when the package version changes).
      DATA_DIR="$HOME/.local/share/${pname}"
      mkdir -p "$DATA_DIR"
      for subdir in prebuilt backend; do
        SRC="${appimageContents}/resources/$subdir"
        DST="$DATA_DIR/$subdir"
        if [ ! -f "$DST/.nix-src" ] || [ "$(cat "$DST/.nix-src")" != "${appimageContents}" ]; then
          rm -rf "$DST"
          cp -r "$SRC" "$DST"
          chmod -R u+w "$DST"
          echo "${appimageContents}" > "$DST/.nix-src"
        fi
      done
    '';

    # Bind-mount writable copies over the read-only store paths so the app
    # sees its files at the expected locations but can write to them.
    extraBwrapArgs = [
      "--bind $HOME/.local/share/${pname}/prebuilt ${appimageContents}/resources/prebuilt"
      "--bind $HOME/.local/share/${pname}/backend ${appimageContents}/resources/backend"
    ];

    extraInstallCommands = ''
      install -m 444 -D ${appimageContents}/eigent.desktop -t $out/share/applications
      substituteInPlace $out/share/applications/eigent.desktop \
        --replace-fail 'Exec=AppRun --no-sandbox %U' 'Exec=${pname} %U'
      install -m 444 -D ${appimageContents}/eigent.png \
        $out/share/icons/hicolor/256x256/apps/eigent.png
    '';

    passthru = {
      updateScript = nix-update-script {};
    };

    meta = {
      description = "Open source AI cowork desktop app — local alternative to Claude Cowork";
      homepage = "https://github.com/eigent-ai/eigent";
      license = lib.licenses.asl20;
      platforms = lib.platforms.linux;
      mainProgram = "eigent";
    };
  }