this post was submitted on 21 Apr 2024
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I'm looking into hosting one of these for the first time. From my limited research, XMPP seems to win in every way, which makes me think I must be missing something. Matrix is almost always mentioned as the de-facto standard, but I rarely saw arguments why it is better than XMPP?

Xmpp seems way easier to host, requiring less resources, has many more options for clients, and is simpler and thus easier to manage and reason about when something goes wrong.

So what's the deal?

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[–] [email protected] 83 points 7 months ago* (last edited 7 months ago) (3 children)

Xmpp is old and has no traction. Matrix is new and there are many people believing in it. There is a lot of money put on matrix. A lot of people want matrix to succeed. Especially companies, agencies and governments love matrix. Jumping on a train that already moves forward is easier than trying to push a standing train.

With xmpp, or signal I've got all my messages on my device. Distributing the info to other devices is difficult. With matrix everything sits on the server and distributes the info to the clients. That's like my file cloud, or my photo cloud or my music server, or my document server. Everything is saved centrally on a server and all is independent of the consumer device. I can use multiple devices and everything sits on the server. That's great for me as a user, it's easy.

Xmpp is scattered which is great on one hand but matrix development is moving very fast. Xmpp can't compete with that.

What's the advantage of xmpp over signal for the end user?

[–] [email protected] 16 points 7 months ago

It is true that Matrix follows a fat server model, but multi-device usage works perfectly well in XMPP these days.

[–] Socsa 11 points 7 months ago (1 children)

I can use my published PGP keys with XMPP, for starters. And I can use OMEMO. Matrix supports neither afaik.

[–] [email protected] 1 points 7 months ago

@Socsa @barbara OMEMO is Double-Ratchet, and so is olm/megolm

https://en.m.wikipedia.org/wiki/OMEMO
https://gitlab.matrix.org/matrix-org/olm

So in that sense, OMEMO and olm/megolm are practically identical.