{
  description = "A Nix-flake-based Python development environment";

  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";

  outputs = { self, nixpkgs }:
    let
      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
        pkgs = import nixpkgs { inherit system; };
      });
    in
    {
      devShells = forEachSupportedSystem ({ pkgs }: {
        default = pkgs.mkShell {
          venvDir = ".venv";
          packages = with pkgs; [ python311 poetry ] ++
            (with pkgs.python311Packages; [
              pip
              venvShellHook
              black
              docopt
            ]);
        };
      });

      packages = forEachSupportedSystem ({pkgs}: {
        default = pkgs.python311Packages.buildPythonPackage rec {
          pname = "barManager";
          version = "0.1";
          pyproject = true;

          src = ./.;
          build-system = with pkgs; [
            python311Packages.poetry-core
          ];
          dependencies = [
            
          ] ++ (with pkgs.python311Packages; [
            docopt
          ]);

          meta = with pkgs.lib; {
            description = "";
            mainProgram = "barmanager";
            homepage = "";
            changelog = "";          
            license = licenses.mit;
          };
        };
      });
    };
}