@kinoko You need to install GNU or give her a computer with GNU and also install all of GNUs fine software, like GNU emacs.

Trisquel GNU/Linux-libre is a nice easy to use OS, but it doesn't prevent you from firing up GNU bash and carrying out advanced actions and programming.

You probably want to show her how to use GNU bash and bash scripting and then she'll be able to easily learn the rest if she chooses too.