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Will the Fediverse switch away from ActivityPub to ATProto?
ATProto is what Bluesky uses, right? It'd be nice if someone could give a quick summary of the features and what differentiates it compared to ActivityPub.
It seems like it would be a pretty big task to switch from ActivityPub, because each fediverse project would have to implement that independently.
There are a number of features that make them different, but the major one that makes me favour ATProto is that it gets around the centralization problems of the Fediverse.
I'm @[email protected] on ActivityPub, this means:
In addition, there isn't any way to transfer data between ActivityPub instances. Sure you can set up redirects in Mastodon, but there's no way to actually transfer information or history.
There's really no reason these three things all need to be managed by the same entity (pawb.social in my case).
Under ATProto:
If I don't like the way Bluesky is going I can just... Leave. I can move my data to another platform and log in to another frontend. All without my followers even noticing a difference or losing any content.
It also has some cool features. For example, there's this thing which allows you to just set up pronouns so that they are visible on your own profile to other people that use the list. https://bsky.app/profile/pronouns.adorable.mom All implemented without any protocol extensions.
Dumb backend, smart frontend?
Basically, have hosts replace services like AWS but don't make them have any power (except for choosing if they agree to host NSFW content or not) and make the data they host public so anyone can develop a frontend to access it, a single account giving you access to everything, administer your own experience, mods have control over the communities they moderate but there's no admin that can decide you don't have access to a big chunk of the content because they don't want to be federated with certain instances.
You can also run your own instance.
FYI: There is a draft about implementing DIDs in ActivityPub: https://codeberg.org/fediverse/fep/issues/209
Both are in the fediverse, perhaps think of them as distant galaxies
Are there insurmountable technical obstacles to supporting both? Serious question.
I don't think so - there's already a project that bridges between AT and AP, so in theory it's possible for that to just be pulled into Mastodon proper.
However, that's not to say it'll be easy. It'll be a years of work with lots of challenges and drama.