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

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

  outputs =
    { nixpkgs, self }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      inherit (pkgs) lib;
      lidarr-mb-gap = import ./nix/package.nix {
        inherit pkgs;
        src = lib.cleanSource ./src;
      };
    in
    {
      nixosModules.lidarr-mb-gap = import ./nixos/lidarr-mb-gap.nix;

      packages.${system} = {
        default = lidarr-mb-gap;
        inherit lidarr-mb-gap;
      };

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

      devShells.${system} = {
        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/"
          '';
        };
      };
    };
}