@miah @camille
Having your same curiosity did a quick search some days ago, this came up:
Edit: Link removed because nazi
In addition to this i heard of Snikket, a simple way to set up a fully functional XMPP server with all the niceties, but bridges to other networks are unsupported with it, so still thinking about it
@jherazob @miah @camille fyi luke smith (website u linked) is a nazi which may be hard to tell from just that article but if you look at his yt channel youll understand