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FOSDEM 2026 - Multi-relay chat messaging & cryptographic identities with Delta Chat and Chatmail relays (fosdem.org)

submitted 3 months ago by Blaze@piefed.zip to c/privacy@programming.dev

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Also: https://blog.feld.me/posts/2025/03/deltachat-is-actually-good-though/

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[–] Blaze@piefed.zip 4 points 3 months ago (1 children)

Alright, so from my personal experience (a bit like you, not an expert on Delta Chat or Simplex)

I tried Simplex recently, and I found the user experience a bit confusing. The chatrooms I was part of were quite verbose, and in one of those rooms people were mentioning the battery drain that simplex can create. I also wasn't able to connect to the SimpleX client on Linux for some reasons.

DeltaChat on the other hand is really newbie friendly. You just set your username, and they take care of the rest for you. You can still connect other devices, and even change servers without encryption getting in the way (imagine the opposite of the way Matrix does things)

I see your point about "why use email if you have to reengineer it anyway?", but if we look at other messenging alternatives:

XMPP also created it's own protocol, and now seems to be in a constant limbo of which clients and servers implements which extension
Matrix who created a very confusing experience for new joiners who don't want to deal with encryption keys on a regular basis

None of them was really convincing either even starting from scratch.

That being said, if you like SimpleX, then it's probably the best for you. I like Deltachat because it was easy to convert my family to it, something I never really managed to do with any of the other alternatives.

[–] CoyoteFacts@piefed.ca 4 points 3 months ago (1 children)

It makes sense to want to use Delta Chat because of the UX right now, but I'm just assuming the UX on all of these projects is bad in some way, and I'm assuming there are improvements to be made in other regards as well (Delta Chat is only recently trying to land Perfect Forward Secrecy, for example). I'm more concerned with looking at the future trajectories of these projects, as someone who has had to convert their friend group between solutions multiple times and is sick of projects that don't go anywhere or will get superseded by projects with better designs.

With that in mind, I'm mainly looking at the fundamentals of the implementation and if, given enough community support/money, all the UX issues could be solved eventually. Even projects like Matrix, which sucks for a few big reasons right now, could still be mostly fixed up with enough effort. My suspicion is that "fixing up" Delta Chat would realistically mean that they should move away from emails as part of their stack, unless there is some actual value-add from keeping it.

(For the record my friends and I are using Signal currently. I played around with SimpleX a long time ago but found the UX lacking for normies.)

[–] Blaze@piefed.zip 1 points 3 months ago* (last edited 3 months ago)

as someone who has had to convert their friend group between solutions multiple times and is sick of projects that don’t go anywhere or will get superseded by projects with better designs.

We're on the same boat.

Even projects like Matrix, which sucks for a few big reasons right now, could still be mostly fixed up with enough effort.

I've been following Matrix since the Riot.im days. Today, Element X is still incomplete. I'm not sure they can even achieve what they should. XMPP is a bit similar. It has been years, and still the experience is supbar.

My suspicion is that “fixing up” Delta Chat would realistically mean that they should move away from emails as part of their stack, unless there is some actual value-add from keeping it.

They kind of already do. That's what chatmail servers are: https://github.com/chatmail/relay

I am also on Signal with some of my friends, but Signal's lack of communities features ( https://community.signalusers.org/t/communities-with-sub-groups/43783 ) is what is truly lacking compared to Whatsapp.