Do you think that it’s possible to build a web service to chat compatible with email , xmpp and matrix?
(and why not even with activityPub or rocketChat ?? )
[exemple and why in the post…]
Email is not chat (and there isn’t a nice gateway for Deltachat AFAIK), otherwise yes that is possible. I run a modern IRC network that can be fully used with federated XMPP and Matrix accounts.
Nice! :)
Do you have to setup a bridge/bot for each room? Or is it at configuration at the server level?For exemple if I have a matrix account and I use Element to create a new channel and invite some guys with IRC and some with XMPP?
No, it’s all automatic, but the core is IRCv3 so some knowledge of IRC is good to have for some more advanced features like channel registration and moderation.
But yes, you can create a channel though the Matrix portal and then share the link to it to IRC and XMPP users, just the syntax for these links is somewhat different for each protocol. Ideally, I could modify the XMPP invite portal (similar to matrix.to but easier to modify) to also work for Matrix and the IRC web-client, but so far they are separate.