[edynoid]

Nix contributor here. You are completely right, that is missing. Unfortunately the documentation is somewhat fragmented and its structure makes it quite hard to find relevant information, especially to newcomers.

We started to work on making official guides for common Nix tasks, about how to get a development environment set up, how to build a Docker image… focus is on the DevOps side at the moment, not so much on the desktop user, as we see that as the most valuable use case. This is part of the work of the NixOS marketing team to facilitate adoption of Nix into the mainstream.

Have a look at https://nix.dev/ for the first guides being worked on – pretty barebones so far, but we are aware and working on it.