NixOS is the best operating system I absolutely cannot recommend to anyone - Anurag Singh
(www.xda-developers.com)
It is a good distro. It's just that the documentation is either outdated, inaccurate or inexistent and that the learning curve is parallel to the y-axis.
The community, somewhat understandably, has limited time and willingness to explain the same things over and over, yet for some reason refuses to conclude that rigorously maintaining a wiki is their best bet to combat this situation and will ultimately be less effort than repeating the same explanations.