https://nixos.org/nix/about.html
https://nixos.wiki/wiki/NixOS

https://github.com/NixOS

A lot of links:
http://blog.timsears.com/posts/morenix.html

Nix Error Messages:
https://nixos.org/wiki/Error_Messages
http://blog.gmane.org/gmane.linux.distributions.nixos/month=20140101

Configuration:
~/.bash_profile
/etc/profile.d/nix.sh