{ inputs, ... }: {
  nix = {
    settings = {
      experimental-features = [ "nix-command" "flakes" ];
      auto-optimise-store = true;
    };

    registry = {
      nixpkgs.flake = inputs.nixpkgs;
    };

    nixPath = [
      "nixpkgs=/etc/nix/inputs/nixpkgs"
    ];
  };

  environment.etc = {
    "nix/inputs/nixpkgs".source = inputs.nixpkgs.outPath;
  };
}