Code as Content on ATProto — Filae

Apps as ATProto records - a proof-of-concept for serverless, user-owned applications.

Tests Are The New Moat | Daniel Saewitz

As AI becomes better at cloning people's open source work, what ends up becoming most valuable are software contracts, tests, and API surface area. This clashes the incentives of clearly defining your commercialized open source software with protecting it.

Starting from scale in the design of the AT Protocol - Paul's Leaflets

Bluesky was founded in 2022 to produce a protocol which Twitter could adopt. The product goals changed, but the requirements didn't.

Permissioned Data Diary 7: Off the Record - Daniel's Leaflets

In which we put records in a repo, sign them, and sync them (but not quite the way you think).

ActivityPub Over ATProto

Thought experiment: how hard would it be to implement ActivityPub over ATProto? The answer might surprise you!

The AT-URI Syntax Mess - at:// pizza thoughts

Why AT URIs are not valid under IETF RFC-3986, what the impact is, and some possible ways forward.

Giving Labels More Context - at:// pizza thoughts

A small tweak to the labeling system to allow richer context and annotations

W Social's Beta Is Live. The Problems Didn't Wait. - Ewan’s Blog

I am definitely not touching W.

I Don't Really Care If Bluesky Dies (As Long As AT Protocol Survives) — Ewan's Corner

Read I Don't Really Care If Bluesky Dies (As Long As AT Protocol Survives) on the blog.

Standardizing Bookmarks in the Atmosphere · Wesley's notes

a mini proposal for a shared bookmark lexicon

physics as a game loop. part 1: objects and waves - underreacted

Badger Badger Badger - Bailey's Retrospective

A short write up about what Bailey had around his neck at #AtmosphereConf 2026

ATmosphereConf 2026

Amongst the blooming cherry blossoms and the busyness of students on reading break preparing for exams, the global AT Protocol community conference ATmosphereConf convened at the University of British Columbia campus in Vancouver BC from March 26-29. This is the second year of the conference. Although supported by Bluesky PBC,

State of the Atmosphere (CONF 2026) - Brookie’s Blog

I should be cleaning the house right now but instead I'm writing about the ~Atmosphere~ again...It's been a full week since I first arrived in Vancouver, for...

Tynan Is Typing | Tynan Purdy | Offprint

Take a peek inside my brain. Internet thoughts. Design takes. Pontificating on life.

The Atmosphere Is Rebuilding The Web, But Better

Ten thoughts on the Atmosphere Conference...