"And of course we work with standards [for Libervia], with XMPP notably. It's a communications standard which is ... mainly know for instant messaging but it can actually do a lot more. So we use it also for blogging ... for these kinds of things.
And I've been working on a gateway [other protocols], notably ActivityPub, the protocol behind Mastodon, PeerTube, Mobilizon, etc."
https://podcast.nlnet.nl/@NGIZero/episodes/technology-is-not-neutral-libervia