casaOS is a docker-compose simplified one click solution, like unraid or heimdall.

Sure I tried to add xmpp to my apps, but finding the right one on xmpp is like the first experience with Linux … too many alternatives. I tried openfire because it sounds good with a compose file and proxy all to my caddy server. But I am stuck actually (the last 10 min), and I am unable to decide if ejabberd is better.