{
  description = "Lidarr to MusicBrainz Missing Albums Finder";

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

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        lib = pkgs.lib;
        lidarr-mb-gap = pkgs.python3Packages.buildPythonApplication {
          pname = "lidarr-mb-gap";
          version = "1.0.0";
          src = lib.cleanSource ./src;
          format = "pyproject";
          nativeBuildInputs = with pkgs.python3Packages; [
            setuptools
          ];
          propagatedBuildInputs = with pkgs.python3Packages; [
            requests
            python-dotenv
          ];
        };
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = [
            (pkgs.python3.withPackages (ps: with ps; [
              requests
              python-dotenv
            ]))
            pkgs.black
          ];
          shellHook = ''
            echo "Python environment ready!"
            echo "Run: python src/main.py"
            echo "Format code with: black src/"
          '';
        };

        packages.default = lidarr-mb-gap;
        packages.lidarr-mb-gap = lidarr-mb-gap;
        apps.default = {
          type = "app";
          program = "${lidarr-mb-gap}/bin/lidarr-mb-gap";
        };
        apps.lidarr-mb-gap = {
          type = "app";
          program = "${lidarr-mb-gap}/bin/lidarr-mb-gap";
        };
      }
    );
}