I told you already.
https://de.wikipedia.org/wiki/ActivityPub
Comment on Instances that didn't block facebooks- thread.net
akilou@sh.itjust.works 11 months agoI’m on Mastodon also. But how do they connect?
DarkThoughts@kbin.social 11 months ago
dan@upvote.au 11 months ago
You can reply to Lemmy posts or comments on Mastodon and they appear as comments on here. If someone replies to that comment, you’ll see the reply on Mastodon.
Both systems use ActivityPub which is how they can talk to each other.