2026-07-10 –, Linden Theater
Christine Lemmer Webber is lead author and co-editor of the W3C ActivityPub specification. Daniel Holmgren is Head of Protocol at Bluesky, working on the AT Protocol specification at the IETF. Join us for a discussion on decentralization trade-offs and other design decisions in the two protocols, and what that means for different architectures, structures, and even future points of convergence.
Moderated by Boris Mann
For background check out this recent article with very useful concept drawings: https://overreacted.io/there-are-no-instances-in-atproto/
Also, the articles that started the conversation:
"How Decentralized is Bluesky?" By Christine Lemmer-Weber https://dustycloud.org/blog/how-decentralized-is-bluesky/
Reply on Bluesky & Decentralization by Bryan Newbold
Re: Re on Bluesky & Decentralization by Christine Lemmer-Weber
Daniel Holmgren is Head of Protocol at Bluesky, where he leads the design and development of the AT Protocol. He's worked in the DWeb space for eight years, previously founding a startup for p2p collaboration on scientific data, then serving as the founding engineer at Fission, where he built an in-browser framework for user-controlled data.