Re blue sky, is anyone actually federating with it? I don’t know of any other instances besides the official one.

https://en.m.wikipedia.org/wiki/Prior_art

I rarely get calendar invites - much less ones that I have to respond to - to my personal Email account. I do on my work email, but I don’t plan on self hosting that anytime soon.

So as someone who recently switched to proton before this BS, what’s good to switch to?