{
  description = "puzzleYOU release action";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
    flake-utils.url = "github:numtide/flake-utils";

    pyproject-nix = {
      url = "github:pyproject-nix/pyproject.nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, pyproject-nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };

        pythonProject = pyproject-nix.lib.project.loadPyproject {
          projectRoot = ./.;
        };

        pythonInterpreter = pkgs.python313;
      in
        {
          devShells.default = pkgs.mkShell {
            buildInputs = [
              pkgs.just
              pkgs.gitea-actions-runner
              (pythonInterpreter.withPackages
                (pythonProject.renderers.withPackages {
                  python = pythonInterpreter;
                  extraPackages = ps: with ps; [ flake8 isort ];
                }))
            ];
          };

          packages.default = pythonInterpreter.pkgs.buildPythonPackage (
            pythonProject.renderers.buildPythonPackage {
              python = pythonInterpreter;
            });
        }
    );
}