Inspired by defederation discourse and my increasing unwillingness to deal with software I consider way too large, I spent the evening cleaning up the bare bones activity pub implementation I wrote a while back, and extended it to support posts, likes, and replies.
By which I mean, it will increment a number, and will save the replies object to disk and never think about it again.
Test user at:
@sarahSarah Jamie Lewis - exposing to identify issues - feel free to poke.