{ inputs, lib, ... }: 
{
  nix = {
    gc = {
      automatic = true;
      dates = "daily";
      options = "--delete-older-than 7d";
      randomizedDelaySec = "5min";
    };
    settings = {
      auto-optimise-store = lib.mkDefault true;
      experimental-features = [ "nix-command" "flakes" ];
      trusted-users = [ "root" "@wheel" ];
      warn-dirty = false;
    };
  };

  systemd.user.services."nix-gc" = {
    description = "Garbage collection for user profiles";
    script = "/run/current-system/sw/bin/nix-collect-garbage --delete-older-than 7d";
    startAt = "daily";
  };
}