{ config, pkgs, lib, ... }: {

  # Define a user account. Don't forget to set a password with 'passwd'.
  users = {
    users.root = {
      hashedPassword = "$6$UljPNAdxZ22lP3Bc$8VaEAacZxtXM3Zji2IA7Jf5fXs9pFnAVQff1d8IbfFOKCvjibceyopOAjRXa8lXtpOSJgPW1OO1dzOspqhWnz0";
    };
  };
  services.openssh.settings.PasswordAuthentication = false;
}