Dan Abramov on AT Protocol architecture

Category: Engineering post
Status: discussion
Sources: overreacted.io
Summary: Covered in Top stories. The post contrasts ATProto's separation of hosting and app aggregation with Mastodon's bundled hosting-plus-app instances, using the RSS and feed-reader analogy to explain account portability.
Why it matters: A clear mental model for decentralized social protocols helps engineers reason about portability and lock-in.