Occidentalis is a collection of packages intended for use on a Raspberry Pi running the latest version of the Raspbian distribution. By default, it installs a collection of development tools and a configuration helper called occi. It also provides a custom kernel build and configuration helpers for various Adafruit products.

Check out our Pi Finder, a graphical, cross-platform tool for locating a Raspberry Pi on your network and configuring it with Occidentalis.

On your Raspberry Pi, open a terminal and enter the following:

sudo -s
echo "deb http://apt.adafruit.com/raspbian/ wheezy main" >> /etc/apt/sources.list
wget -O - -q https://apt.adafruit.com/apt.adafruit.com.gpg.key | apt-key add -
apt-get update
apt-get install occidentalis

There's also a handy installation script to do the same thing. You can inspect it with:

curl -SLs https://apt.adafruit.com/install | less

And, assuming you trust us, run it with:

curl -SLs https://apt.adafruit.com/install | sudo bash