------ideas
https://hub.docker.com/r/rroemhild/ejabberd/
------done
- logging
- stun
- tls for non c2s, s2s
- listen
- modules
- set .env for ip and hostname
------open
- ssl reload config über acme.sh trigger
- re-enable irc
- add conversejs
- add abuse address
- compliance test
- add backup