Anyone who is interested in the #Fediverse and #ActivityPub is welcome to join the Social Web Community Group #SocialCG at the #w3c. It's the group that develops and advances the social standards that make this network go. It's open to anyone. If you have specific interests, we have task forces that work on specific topics. Or you can start one! It's easy to join. https://www.w3.org/community/socialcg/