{ self, nixpkgs-unstable, tree, ... }@inputs:
let
  defaultModules = [
    # NO_INLINE
    tree.impure.modules.nixos
    tree.impure.profiles.base
  ];
  defaultModulesNixOSUnstable = defaultModules ++ [
    # NO_INLINE
    inputs.home-manager-unstable.nixosModules.home-manager
  ];

  defaultSpecialArgs = {
    tree = tree.impure;
    pureTree = tree.pure;
  };

  defaultSpecialArgsNixOSUnstable = defaultSpecialArgs // {
    inputs = inputs // {
      # set these to the correct versions from inputs
      nixpkgs = inputs.nixpkgs-unstable;
      home-manager = inputs.home-manager-unstable;
    };
  };

  nixosUnstableSystem = nixpkgs-unstable.lib.nixosSystem;

in {
 inherit defaultModules;
 inherit defaultModulesNixOSUnstable;
 inherit defaultSpecialArgs;
 inherit defaultSpecialArgsNixOSUnstable;
}