nixos-config/2configs/temp/testusers.nix

{
  users.users.testi = {
    hashedPassword = "$y$j9T$2GMbDpeh90cUXmdIR32g8/$8aUhDcpo22UYLGu6yiWflzSayAnCm5XNXNVIQOVTQk4";
    isNormalUser = true;
    extraGroups = [ "sudo" "wheel" ];
  };
}