{
  description = "Development shell + app for google-cookie-retrieval";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

  outputs = { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      src = ./.;
      inputs = [
        pkgs.python3
        pkgs.python3Packages.selenium
        pkgs.chromedriver
        pkgs.chromium
      ];
    in {
      devShells.${system}.default = pkgs.mkShell {
        buildInputs = inputs;
        shellHook = ''
          echo "Development shell with Python, Selenium, and Chromedriver loaded."
        '';
      };

      packages.${system}.default = pkgs.python3Packages.buildPythonApplication {
        pname = "google-cookie-retrieval";
        version = "0.1.0";
        src = self;

        propagatedBuildInputs = inputs;

        pyproject = false;

        installPhase = ''
          mkdir -p $out/bin
          cp selenium_cookie_extractor_json.py $out/bin/google-cookie-retrieval
          chmod +x $out/bin/google-cookie-retrieval
        '';
      };

      apps.${system}.default = {
        type = "app";
        program = "${self.packages.${system}.default}/bin/google-cookie-retrieval";
      };
    };
}