Have you written something about the Conf ?
It must not be a long Blog Post but please tell us here.
This is a wonderful piece :
ACTIVITY PUB – IT’S ALL CONNECTED @maloki
and
Updates: ActivityPub Conference, and more
Darius Kazemi, FriendCamp – with a theory and a postproposed talk
Live Snippets
Videos / Photos
or ActivityPub Conference - ConfTube