> I work on projects with terrible documentation because somebody pays me to do so or there is a significant potential that I can unlock.

I mean, I'd argue there is significant potential, but really, for me it's just easy because I've been doing it for 20 years, and documentation is always fundamentally worse than code in some important ways.

> If Nix project really cares about being competitive and adopt users, they have to document their stuff.

This is one of the good/bad things about OSS.. most users don't provide positive value to the project. So do they really want to adopt users? Shrugs but the project is certainly competitive.