{ user, ... }:

{
  nix = {
    enable = true;
    daemonCPUSchedPolicy = "idle";

    settings = {
      cores = 0;
      max-jobs = "auto";
      trusted-users = [ user ];
      use-xdg-base-directories = true;
      experimental-features = [ "nix-command" "flakes" ];
      substituters = [ "https://attic.xuyh0120.win/lantian" ];
      trusted-public-keys = [ "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc=" ];
    };

    gc = {
      automatic = true;
      persistent = true;
      dates = "weekly";
    };

    optimise = {
      automatic = true;
      persistent = true;
      dates = "daily";
    };
  };
}