Generating certs for use with WeeChat Relay


I’ve received today the letsencrypt invite for my domain : irc,$

I’ve been wanting to use it for my weechat relay, using SSL, and therefore encrypting the connection.

However I am not able to generate the certificates. The letsencrypt utility fails at the challenge (obviously).

Would there be a way to allow me to use Letsencrypt this way ?

Thanks !