NixOS!

Some screenshots here: https://lemmy.ml/post/1507647

I see some Lemmy results quite fine. Google results need some time to be indexed.

Right now there are 10 (that I could find on browse.feddit.de) instances named Linux on different server

Over time one of them will have more activity than the other and attract more and more users, it will then be THE linux community on lemmy. Just give it time.

https://simplelogin.io/ allows you to create infinite mail aliases. I personally use a different alias for every service I use.