Are we claiming now that Activity Pub is the only protocol that we can use for the fediverse? I think XMPP is roughly 30 years old at this point, and I'm pretty sure Activity Pub is much younger than that. I could be wrong though.

But regardless, I don't see why Activity Pub has to be the only protocol we accept to be considered a part of the fediverse. It's not even like different AP implementations talk to each other all that well. My understanding is that Mastodon doesn't federate that well with Lemmy, and I haven't seen Loops or Pixelfed on Lemmy yet either.

I'd be happy to be corrected on any of this though, I haven't looked too closely into exactly how AP works or how it's supposed to interoperate with different applications.

[–] PeriodicallyPedantic@lemmy.ca 1 points 1 year ago

I'd like to argue that using AP is an inconsistent rule for membership. For example, Diaspora has been considered to be part of the fediverse from early on, but it doesn't use AP.

I don't really know where to draw the line. AP simply isn't suitable for some applications, but it makes sense to include it for branding

[–] cmhe@lemmy.world 1 points 1 year ago (1 children)

Matrix is federated, Signal is not.

[–] biggerbogboy@sh.itjust.works 3 points 1 year ago (1 children)

although it is federated, it isn't apart of the fediverse, as it doesn't use activitypub.

[–] pennomi@lemmy.world 2 points 1 year ago

I’d argue it’s part of “the fediverse” but not “The Fediverse”.