https://atproto.com/guides/self-hosting
Edit: After digging in a bit, I believe the thing most people would consider as “running an instance” would be an appview and/or relay. Both of which they claim are ready, I just haven’t seen any. I think that part of the disconnect is that in ActivityPub the roles of what AT Protocol calls PDS, Relay, and AppView are all handled by a single instance. A PDS stores canonical data, a Relay aggregates PDSes, and an AppView is a UI reading from a relay.
https://github.com/bluesky-social/pds?tab=readme-ov-file#what-is-the-current-status-of-federation
That lets you host your own data. You cannot host an instance. You must use the Bluesky app with your PDS.
From what I’ve read, that’s not possible, at least not yet. Currently, everything must go through their relay and it will only “federate” with PDS’
