Thanks for the great reply, really appreciate it. I found the basic setup to be quite straightforward – using zsh which seems like a lucky choice now :D

I'm currently working on a backoffice software. You can do that with literally any language/framework. But as you mentioned, adding near-instant sync for different users would simply be a breeze compared to any backend with a React-ish frontend from what I saw so far. And I can totally see affordances for such a type of software going into this direction.