It makes me wish Keybase was still a thing. They had a slack like platform that was E2EE. It still exists but idk, do we trust Zoom? Maybe it is still a better option.
But thanks, I'll look into Zulip. Sounds like it has things I want
I used keybase for the longest time (one can still see the proofs on my various profiles) but eventually the app would hang so much I convinced my network to move to Signal. I still don't know why Zoom didn't cut the technology loose since they seemed to just have acquihired keybase and didn't try to fold it into Zoom or do anything except let it bitrot
I actually sponsor Zulip because that's the world I want to live in: sane threading, public HTML views of the chats, Apache 2 licensed, and a "we host it for you" for Open Source communities
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Back in the olden days, I actually would have submitted a PR to introduce that new behavior, but their "fuck you, it's our project" taught me that it's source available more than open source for any meaningful version of that