Compiling the Linux kernel on the Pi itself takes a long time – the Pi just isn’t built for it. However, you can ‘cross-compile’ it on a more powerful Windows, Mac or Linux computer thanks to a new tool from Adafruit – the Kernel-o-Matic. The Kernel-o-Matic uses a piece of software called Vagrant to do it. You can download the Kernel-o-Matic from Adafruit’s Github repository.