Maybe I'm living in a parallel reality, but there are plenty of Slack alternatives and plenty of companies using Slack clones such as Mattermost and Zulip, among others. And yes, they work just fine.
I first tried the demos on Firefox and was like "wow, this looks fancy". Then, I saw there was a "Chrome-only" warning. I actually prefer the way it looks on Firefox, TBH.
Highly recommended. "In our time" is incredibly informative, and we're so lucky to live in an era where we can enjoy the endless recordings of this show!
Wow, that's a very opinionated take, to say the least. Especially when by Europe we mean three dozen countries or so, all of them with their own history, policies and laws. A little bit more nuance would help.
https://gitlab.cern.ch/cta/CTA
Its memory is still alive in CTA, however:
https://gitlab.cern.ch/cta/CTA/-/blob/main/catalogue/TapeSea...