{
    inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";

    outputs =
        { self, nixpkgs, nix, }:
        let
          systems = [ "x86_64-linux" ];
          forEachSystem = nixpkgs.lib.genAttrs systems;

          overlayList = [ self.overlays.default ];

          pkgsBySystem = forEachSystem (
            system:
            import nixpkgs {
              inherit system;
              overlays = overlayList;
            }
          );
        in
        rec {
          overlays.default = final: prev: { invoiceninja-desktop = final.callPackage ./package.nix { }; };

          packages = forEachSystem (system: {
            invoiceninja-desktop = pkgsBySystem.${system}.invoiceninja-desktop;
            default = pkgsBySystem.${system}.invoiceninja-desktop;
          });
        };
}