{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };
  outputs = { self, nixpkgs, ... }: let
    forAllSystems = f: (nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-linux" ] (system: let
      pkgs = import nixpkgs { inherit system; };
    in f { inherit pkgs system; } ));
  in {
    packages = forAllSystems ({pkgs, system, ...}: {
      allesapp = pkgs.stdenv.mkDerivation rec {
        pname = "allesapp";
        version = "0.1.0";

        src = ./.;

        nativeBuildInputs = with pkgs; [
          meson
          ninja
          pkg-config
          vala
          wrapGAppsHook4
          desktop-file-utils
          gobject-introspection
        ];

        buildInputs = with pkgs; [
          glib
          libadwaita
        ];
      };
      default = self.packages."${system}".allesapp;
    });

    hydraJobs = {
      inherit (self)
        packages;
    };
  };
}