{
  pkgs,
  nixpkgs,
  home-manager,
  system,
  specialArgs,
  nixos-modules,
  home-module,
}:
nixpkgs.lib.nixosSystem {
  inherit pkgs system specialArgs;
  modules =
    nixos-modules
    ++ [
      {
        # use flake's nixpkgs for `nix run nixpkgs#nixpkgs`
        # and `nix repl '<nixpkgs>'`
        nix.registry.nixpkgs.flake = nixpkgs;
        environment.etc."nix/inputs/nixpkgs".source = "${nixpkgs}";
        nix.nixPath = ["/etc/nix/inputs"];
      }

      home-manager.nixosModules.home-manager
      {
        home-manager = {
          useGlobalPkgs = true;
          useUserPackages = true;
          extraSpecialArgs = specialArgs;
          users."${specialArgs.username}" = home-module;
        };
      }
    ];
}