This week Evan Prodromou is back to take us deeper into the Fediverse. As many of us reconsider our relationship with Twitter, Mastodon has been by-and-large the target of migration. They helped to popularize the idea of a federated universe of community-owned, decentralized, social networks. And, at the heart of it all is ActivityPub. ActivityPub is a decentralized social networking protocol published by the W3C. It is co-authored by Evan as well as; Christine Lemmer-Webber, Jessica Tallon, Erin Shepherd, and Amy Guy. Today, Evan shares the details behind this protocol and where the Fediverse might be heading.