this post was submitted on 02 Sep 2024
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From a practical sense, ActivityPub may be the obvious choice as it gives easier interop with the largest federated platforms.

But what else? There are existing platforms built on these protocols, such as movim for xmpp, and another for matrix I forget.

From a technical standpoint, are there any major pros and cons?

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[–] [email protected] 2 points 2 months ago (1 children)

Email works well and is federated

[–] [email protected] 2 points 2 months ago (1 children)

Although it's federated nature is kinda dying.

If you're not on one of the major providers good luck getting people to see your email.

[–] [email protected] 1 points 2 months ago

I know ☹️

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago) (2 children)

Matrix is too hefty. XMPP is stateless sort of. ActivityPub just works.

[–] [email protected] 1 points 2 months ago (1 children)
[–] [email protected] -1 points 2 months ago (1 children)
[–] [email protected] 3 points 2 months ago (1 children)

And... that if "activitypub just works" , so does XMPP.

And... XMPP servers offer better performance and taking less resources than any of the leading AP projects.

And... XMPP already has E2EE.

[–] [email protected] 0 points 2 months ago* (last edited 2 months ago) (1 children)

And what do you do about other clients? What happens when the user wants to clear messages on the server when they're fetched, but doesn't want to do that for the social network rooms? What about moderation.

XMPP is good at a very specific thing and I don't think its users would like all the necesary changes.

[–] [email protected] 1 points 2 months ago

None of your questions are about the protocol, but implementation details of the application.

[–] [email protected] 0 points 2 months ago (1 children)

From my understanding developers often complain about activityPub. Can we really say that it "just works"? Federation and interop issues are common as well.

[–] [email protected] 0 points 2 months ago (1 children)

It works better than anything else.

[–] [email protected] 2 points 2 months ago

It may seem so due to its success, but I'd argue its success was more tied to luck and timing than technical superiority.

Mastodon was growing and "new" during the period of the decline of social media, and specifically during several moments of Twitter having issues with moderation, and later on acquisition by musk.

Similarly to lemmy, the Reddit third party API fiasco.

I don't think this means that it works better than anything else. It was just the most obvious choice to users at the time.

[–] [email protected] 1 points 2 months ago (1 children)

I think XMPP is a nice supplement to ActivityPub instances for more private chat. You can quite easily hook the user database of Mastodon or Lemmy to an XMPP server and have the same user address work for both that way.

[–] [email protected] 0 points 2 months ago (1 children)

I would even say XMPP would be a better underlying communication protocol under ActivityPub, as it specs many aspects that ActivityPub does not.

[–] [email protected] 1 points 2 months ago (1 children)

XMPP via its pubsub implementation could function similar to ActivityPub, but that part of XMPP is a bit neglected as few apps use it for anything more complex. XMPP's real strength is in real-time communication and I think it's good to stick with that.

[–] [email protected] 1 points 1 month ago

Is it really neglected though? There are dedicated extensions for it, and movim.eu uses it without issues.

XMPP's real strength is in real-time communication

It's an extensible communication protocol and has been extended to many use cases, and has a good track record of performing well and handling extensions well. I'd argue this makes it a better candidate than activityPub.

In a parallel universe, we may have had less federation issues had we gone xmpp!