NixOS is the best operating system I absolutely cannot recommend to anyone - Anurag Singh
(www.xda-developers.com)
Nixpkgs and home manager on top of Arch is a nice hybrid system. I gave up on the idea for my PC because it enforces a level of tidiness that I'm not always on board with. Sometimes I do Evil Things to my computer and leave garbage lying around. It doesn't complain, and I'd shoot it if it did