[poincaredisk]

>In my opinion, there should be 3 Linux distribution. That's all.

Initially I instinctively agreed with you - certainly there's too many fragmentation in the Linux distro space!

Then I recalled I use NixOs, and it probably didn't make it to your top 3...

[aucisson_masque]

Couldn't nixos main feature be implemented in a mainstream distribution ?

Technically you can install nix package manager on Debian, and what is nixos main interest without it's package manager ?

[TsiCClawOfLight]

It manages the entire, immutable, OS with it. That's a completely different paradigm, you cannot simply mix them!