

Prosody is a great piece of software, and so is ejabberd which offers some perks. I can’t speak for the other servers (mongooseim, openfire, tigase, …) which I haven’t tried in a long time,
All that’s to say that it’s amazing that we get so many well maintained and compatible servers (and clients) implementations in XMPP-land, and all the implications for its healthy future.
For the record, it seems the project moved on, just without its previous maintainer, to github: https://github.com/tt-rss/tt-rss