{...}: {
  users.users.juan = {
    isNormalUser = true;
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFpkZoYCFS6jQyaLgRkG8WlOj8ybpwsJkCWTuKkGB5oA Juan Rey"
    ];
  };
}