this post was submitted on 24 Mar 2025
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Fair - you could host a copy or a link (or a sort of combination between the two, I guess), but it wouldn't transfer the ownership of the original post. I'm still not sure this is such a pressing feature that I accept it as the actual raison d'etre of AT proto, especially considering how it very much exists there only in theory at best. But it is interesting technology, and something they could maybe have worked with ActivityPub to try to achieve.
I'm glad to hear that maybe Bluesky is more decentralized than I suspect, but Bluesky engineer whose blog post you linked still links to his bluesky account on bsky.social. If running a separate instance is achievable, I would love to see people actually do it.
You full on misunderstand the protocol. The .bsky.social subdomain does not denote what "instance" you are on. There are no instances on atproto. That user could be self hosting all there data and still use that subdomain. It's not mutually exclusive. Atproto is far more atomic than AP.
Right. I guess that's similar with bridged users - you see them on bsky.app, even though they are actually located elsewhere.
What I struggle with is seeing the decentralization in practice, when the only place I can ever see AT proto in action is when Bluesky users are bridged to the fediverse. Bluesky has a shitload of users and there are a bunch of people jumping on the technology - why is there not so much as an understandable proof of concept out there?
On ActivityPub it's so easy to understand. "See this post? Well, here's the same post on some other domain, hosted by other people".
I don't understand how Bluesky can be this difficult to understand, yet apparently fulfil such a fundamental need.
It's fairly easy to understand but you won't really see it and that by design. The point is to make the underpinning so seamless that it feels like a centralized app. The proof of concept is Bluesky, but if you would like to see other services that are completely unaffiliated with Bluesky PBC than check out:
All of these and many more are being built along with infrasstucture plays from the like of Blacksky, Northsky, and Free our Feeds.
Thanks! Maybe I'm just dumb in my own unique way, but I find the practical implications of AT proto hard to wrap my head around. :)