req on ubuntu:
sudo apt-get install ruby-dev
sudo apt-get install libtool-bin
Just where I goof around with various katas or exercises. Don't judge me too harshly here: I do these in my spare time to keep myself sharp, so they're not all very tidy. :)
Most of the code actually just lives with its own spec in /spec dir.
Sometimes I write up my observations from an exercise on my blog.