We are looking for talks about the AT Protocol and the ecosystem growing around it.
Suggested topics include, but are not limited to:
- Applications: what cool application did you build?
- Data that isn’t public by default: private records, group-scoped and shared data, and what changes for an application when not everything is on the firehose.
- Running the infrastructure: self-hosting a PDS, relays, AppViews, feed generators, labelers. What are your stories?
- Protocol: new features like the permissioned spaces.
- Development: independent implementations of protocol components, SDKs, and libraries in different programming languages
- Moderation: what is your opinion or usage of the stackable moderation and labeling systems
- Account portability and data ownership: what actually works today and what is still missing
- Interoperability and bridges: atproto and ActivityPub and other open social protocols
- Governance: specification processes, and the path toward an ecosystem with multiple independent stewards
- Research, measurement, and analysis of the network
- Critical perspectives: where atproto’s design falls short and what should change
We welcome talks from protocol implementers, application developers, infrastructure operators, researchers, and community members. Talks from people who are skeptical of the design are as welcome as talks from people building on it. Demos and lessons-learned talks are strongly encouraged over roadmap presentations.
Standard slots are 20 minutes plus 5 minutes for questions. Tell us in your submission if you would rather have a 10-minute lightning slot.
Please note that by accepting a speaker slot, you agree to your talk being recorded.
Why does this proposal fit FOSDEM:The open social web is an active area of open source development, and FOSDEM has consistently hosted the communities working on it. Atproto is open source, openly specified, and increasingly developed by parties beyond its original authors.
The topic has already proven it draws speakers and audiences at FOSDEM. These are talks that happened during the 2026 edition:
- DASL Your Protocols! — https://archive.fosdem.org/2026/schedule/event/W8CJXD-dasl/
- AT: The Billion-Edge Open Social Graph — https://archive.fosdem.org/2026/schedule/event/ZT7TB9-at-the-billion-edge-social-graph/
- Decentralized Public Broadcast with Streamplace — https://archive.fosdem.org/2026/schedule/event/PN7WCS-decentralized_public_broadcast_with_streamplace/
- Increasing Long Term Stability of Relations Between Fediverse Identities using SSI on the Fediverse-Atmosphere bridge — https://archive.fosdem.org/2026/schedule/event/RZRZ9P-increasing_long_term_stability_of_relations_between_fediverse_identities_using_s/
- Stop Reinventing in Isolation: Bringing Open Source to Trust & Safety Infrastructure covering Bluesky’s adoption of Roost — https://archive.fosdem.org/2026/schedule/event/U7ABHE-roost-osprey/
A dedicated devroom would let these conversations happen in one room, in front of the audience that wants them, instead of scattered across the schedule.
Interest in the protocol has grown over the past year and many exciting projects have emerged in the meantime. Having a room at FOSDEM, would let us mark the occasion and celebrate the open source side of the ecosystem.
Prefered slot:Full day (any)
Submitters affinity to the topic:Viivi (@viivi.rocks) works at Tangled, a git forge built on atproto, previously organizing communities within the greater tech space as an operator.
Édouard Paris (@edouard.paris) is a meetup organizer and blog writer for the French Atproto community through the website atproto.fr. By day, he is a full time software engineer.
Bluesky PBC, which authored the protocol, supports the proposal and expects to send several engineers.
The room is community-organised, and the named managers choose the talks.
Relevant URLS:https://atproto.com/
https://atmosphere.community/
https://datatracker.ietf.org/wg/atp/about/