Heads up: we’ve recently released an entirely new repository for, and way of setting up the Raspberry Pi. The new repo is called FarmBot_OS and its just what it sounds like: an entire operating system with all the FarmBot goodies built-in. Check out the installation instructions in the readme: https://github.com/FarmBot/farmbot_os#first-time-installation
Essentially nobody will need to install Ruby or clone git repos or anything anymore. Just flash the OS onto an SD card, plug it in, turn on the pi, and use the nifty wifi-configurator to setup your FarmBot (connect it to your home wifi and to your web app account).
This system also features over-the-air updates, so you can now install arduino firmware and controller updates right from the web application! Its really cool
Let me know if you have any issues getting it set up.