From the outside, Bluesky may seem like a Twitter clone. But anyone who’s close to the technology — and the team — knows that they’re building something much deeper: they’re rethinking the internet’s architecture to create a more flexible, user-centric web.
Bluesky’s CTO Paul Frazee is the perfect person to explain all this, as he’s fantastic at tying technical concepts to their practical application and wider impact. In this interview with Mike McCue, recorded live at the Fediverse House at SXSW 2025, Frazee unpacks Bluesky’s first principles, what makes AT Protocol different from ActivityPub, why identity portability is a radical shift,