Discussion
@delta I understand there is a sunken cost situation now: You invested a lot of time and resources to build on top of a sub-optimal protocol. So it would be a wasted effort to migrate everything to XMPP and thus I'm not expecting you to admit XMPP would've been the wiser choice over IMAP+Submission (for C2S) and SMTP (for S2S).
It's funny how the thing you came up with where DeltaChat is different, is that it presents itself a Rust SDK rather than a protocol to client developers.
@daniel literally wrote about this "I don't like existing SDKs" topic before.
What remains is that before you created the SDK on top of a protocol that wasn't XMPP, it didn't exist either. Had you created the SDK on top of XMPP, it would still use a better protocol for the job and you would still have the SDK you just promoted.
@delta I understand there is a sunken cost situation now: You invested a lot of time and resources to build on top of a sub-optimal protocol. So it would be a wasted effort to migrate everything to XMPP and thus I'm not expecting you to admit XMPP would've been the wiser choice over IMAP+Submission (for C2S) and SMTP (for S2S).
@pixelschubsi It's probably true that abstractly, Delta could have used XMPP as an underlying protocol instead of email, or IRCv3 😊 But the reality of how projects evolve is much more complex than just this protocol detail. In any case, things are how they are now. Delta could evolve to have XMPP transports, or some XMPP folks do a friendly fork of all Delta UIs and glue it to xmpp-backends. We'd be supportive of either, but can't do that work ourselves.
@pixelschubsi to be honest even if starting today, I think I would still prefer #email over #xmpp, I don't regret one bit the choice they made, at least so far it is doing its job pretty well, #DeltaChat had proper quote-replies even before threading got introduced to #xmpp because it existed in email since forever, there was an RFC for reactions over email as well long ago, email was made for slow networks even before the web, delta chat is being used even over radio in the Amazon rainforest
@adbenitez @pixelschubsi yes, I think same idea. Although I haven't proove and test it, I think #deltachat #chatmail will be more robust on very slow and poor connection.
