{ self, home-manager, nixpkgs, tree, ... }@inputs:
let
  defaultModules =
    [ home-manager.nixosModules.home-manager tree.impure.modules.nixos tree.impure.profiles.base ];
  defaultSpecialArgs = {
    tree = tree.impure;
    pureTree = tree.pure;
    inherit inputs;
  };
in {
  lappy = nixpkgs.lib.nixosSystem {
    specialArgs = defaultSpecialArgs;
    system = "x86_64-linux";
    modules = defaultModules ++ [ ./lappy/lappy.nix ];
  };

  hetzner-vm = nixpkgs.lib.nixosSystem {
    specialArgs = defaultSpecialArgs;
    system = "x86_64-linux";
    modules = defaultModules ++ [ ./hetzner-vm/hetzner-vm.nix ];
  };
}