{ config, ... }: {
  nixpkgs.config.allowUnfree = true;
  nix = {
    extraOptions = ''
      warn-dirty = false
    '';
    settings = {
      auto-optimise-store = true;
      experimental-features = [ "nix-command" "flakes" ];
      substituters = [ "https://hyprland.cachix.org" ];
      trusted-public-keys = [
        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
      ];
    };
    gc = {
      automatic = config.var.autoGarbageCollector;
      persistent = true;
      dates = "weekly";
      options = "--delete-older-than 7d";
    };
  };
}