https://mstdn.dk/users/sindum posted on Mar 22, 2026 01:04
In reply to: https://activitypub.space/post/1632
In reply to: https://activitypub.space/post/1632
@julian Thanks!
Groups use the FEP-1b12 pattern — Group actors, Follow to join, Create to post, Announce to fan-out — but with one current limitation: group federation is Fedibook-to-Fedibook only for now. Non-Fedibook
instances get a Reject on Follow.
It's a pragmatic shortcut to get something working for now. Full cross-platform group support (Mastodon, Lemmy, etc.) is the goal if it proves feasible.