I’m warming up to ActivityPub by fluffyfluffy
While Publ is still going to be an IndieWeb-first platform (simply because it's so much easier to integrate -- having modular Lego bricks and a pick-and-choose functionality set that is as simple as adding it to one's HTML templates is a *very* compelling approach), I've had some good discussions regarding ActivityPub lately and it's starting to seem a bit more possible to add that as an add-on for Publ.

Good thoughts about ActivityPub and IndieWeb