[giphyman]

Briar is actually built on a library called Bramble that can be used for offline-first p2p data syncing. There was recently a good talk by a Briar Dev going deeper into the Bramble protocol: https://nico.dorfbrunnen.eu/posts/2021/diving-at-xmpp/

[goodpoint]

Thanks for the link. Unfortunately that implementation can be used only from java.