{ pkgs, lib, ... }:
{
  nix.settings = {
    substituters = lib.mkAfter [ "https://karitham.cachix.org" ];
    trusted-public-keys = lib.mkAfter [ "karitham.cachix.org-1:Q0wdHZsCssuepIrtx83gHibE0LTDYLVNnvaV3Nms9U0=" ];
  };

  environment.systemPackages = [ pkgs.cachix ];
}