Lua files representing features of XMPP servers and clients. Rendered pages can be found at <https://www.zash.se/xmpp-features.html> for servers and <https://www.zash.se/xmpp-clients.html> for clients.
Nyco/XMPP-Features
Probably inaccurate feature comparison table for XMPP software, fork-it&fix-it!
Lua