Technology
This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.
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correction: it was both! fedbook chat also supported xmpp at first, they never federated but you could at least use it with a jabber client. then when they had enough market share they killed it.
fun semi related fact is that, at least a couple of years ago, was using modified ejabberd (ie an xmpp server) as the backend - so arguably they helped with EEE too.