{ ... }:
{
  nix.settings.trusted-users = [ "builder" ];

  users.users.builder = {
    openssh.authorizedKeys.keys = [
      # my personal key
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINBkozy+X96u5ciX766bJ/AyQ3xm1tXZTIr5+4PVFZFi"
      # remote builder ssh key
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGFGxdplt9WwGjdhoYkmPe2opZMJShtpqnGCI+swrgvw"
    ];
    isNormalUser = true;
    group = "nogroup";
  };
}