Mattermost user here, I self-host an instance for friends and family (and their children).

To upgrade and discover I’d lost access to the message history on my own instance was infuriating. I’m investigating alternatives right now.

So far Zulip seems reasonable - although Google and especially Apple being shits about push notifications means you can’t self-host push notification servers 🙄 So I’m considering forgoing push notifications altogether and leaning on email notifications instead.

Not for self-hosted installations, where Zulip aren’t paying for the storage themselves.

Instability in my WIndows NT 4 development machine. I’d been using Linux as a hobbyist for several years, but switched to it at work so I had a machine that didn’t crash every few hours.