So does elpher. But you don't need a dedicated client to see the raw server response, all you need to really do is use something like 'gnutls-cli hostname -p 1

So does elpher. But you don't need a dedicated client to see the raw server response, all you need to really do is use something like 'gnutls-cli hostname -p 1965 --no-ca-verification' and then enter the full gemini URL once you have a connection.