Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Share your development and build environments across different machines.
NixOS is a Linux distribution with a unique approach to package and configuration management. Built on top of the Nix package manager, it is completely declarative, makes upgrading systems reliable, and has many other advantages.
A Nix terminology primer by a newcomer nixos docs
TODO Tweag I/O - Nix Flakes, Part 1: An introduction and tutorial
TODO nix-shorts/install-things-to-nix-profile.md at master · justinwoo/nix-shorts
readlink -f ~/.nix-profile