# Nix related settings
{ lib, pkgs, ... }: {
  nix = {
    package = pkgs.nixFlakes;
    extraOptions = ''
      experimental-features = nix-command flakes
    '';

    settings = {
      trusted-users = [ "root" "@wheel" ];
      auto-optimise-store = true;
      substituters = [
        "https://cachix.cachix.org"
        "https://nix-community.cachix.org"
      ];
      trusted-public-keys = [
        "cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      ];
    };

    gc = {
      automatic = true;
      options = "--delete-older-than 14d";
    };
  };
}