We are considering this for the solely because it is has screen sharing built in at the free level. In Slack, we would have to bump up to the paid level, and for our small team, the price jumps from free to $600+. The "decisions" and "tasks" features look like they might be nice (in theory). The largest thing holding us back is that many of us use Slack for other groups, which means Stride would be one more thing to run. A killer feature would be the ability to participate in Slack workspaces.

Any sources on that? I'm pretty sure it's a heavy re-architecting at the very least, but if it's the same team and lead, have they gone entirely from scratch or repurposed some of Hipchat's code? (just questioning)

Not curious enough to do the kind of blackbox exploration folks at https://webrtchacks.com or other sites do :)