This is exciting and we have been able to read it in the fediverse report number 16: «Work is starting on a protocol bridge between ActivityPub and the AT protocol (the protocol used by Bluesky). Here is a work in progress (and another demo), and also there is a group network starting up that is dedicated to this. This is one of the key stories in the fediverso right now, with massive implications going forward. Bluesky has a lot of energy and interest behind it. of it currently, and being able to interoperate with the rest of the fediversos would be of great benefit to all parties.»
Attention to the group @activitypubblueskybridge@venera.social in which to participate you just have to follow the profile and mention it in your toots so that the group promotes them.