this post was submitted on 21 Oct 2024
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Is Bluesky federated?
Theoretically, yes. Practically, the way their model is set up, it costs a lot to host a federated server so no one is doing it.
Wait really? I thought cost were relatively low since a lot of people do it themselves
What you see on Bluesky is a lot of people using their own domains for their handles. They are not hosting their own instances though, it's only their identities. Their connection to the AT protocol still goes through the central Bluesky server.
This is something the AT Protocol does well. Your identity is portable and can be separate from the instance you use.
In theory, you can move to a different instance but keep your handle the same. There's no way to do that with ActivityPub. If you move to a new Lemmy or Mastodon server, you have to change your username to one at the instance's domain.
If we're talking about self-hosting your own personal data storage (PDS), a few hundred people are doing that, here is a list. Apparently a Raspberry Pi is sufficient to host a PDS.
you can also follow bsky users on mastodon and mastodon users on bsky using bridgyfed.