[Bolkan]

Nix source code is also a pleasure to read through. I was surprised that c++ could be so beautiful and well written.

[User23]

C++ gives you an enormous amount of rope to hang yourself with, but it’s also an highly expressive language.

[bhedgeoser]

Nix doesn't use most of C++ features though. It's just the way project was organized and code was formatted that it looked beautiful and easy to skim through.