This file should become a nix expression. (see modules/installer/tools/tools.nix)

you need to:
- download the latest jQuery from and copy it to chrome/content:
    http://code.jquery.com/jquery-1.5.2.js

- install 'xulrunner' with nix:
    nix-env -Ai nixpkgs_sys.firefox40Pkgs.xulrunner

- make sure nixos-option in your path

- have /etc/nixos/nixpkgs
- have /etc/nixos/nixos

run it:
- xulrunner /etc/nixos/nixos/gui/application.ini -jsconsole
