b609ff4fcf
The environment variable "NIXOS_EXTRA_MODULES" is now checked to contain a path to a file similar to modules/module-list.nix. This gives the ability to include nixos modules that are not in the nixos source tree. This can be useful for modules that are still experimental, or which aren't useful for other nixos users. Of course, this was already possible to do this using a forked nixos tree, but with this functionality, you can just rely on the nixos channel, easing things a lot.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.