If you have a Nexus device you are probably someone that loves Android, and generally if you love Android you also love Open Source. Tweaking and changing things in the OS is something Google allows you to do, until a certain point, for those who want to experiment a little more Ubuntu Phone OS might be the operation system to go with.
Ubuntu Phone is the Ubuntu version optimized for mobile smartphones, it is open source and allows for even more customization then Android. Its either that or you just want to try something new, but Install Ubuntu on a Nexus 4 can be a little complicated, that is why we have put together a guide on how to do so, make sure to follow each step and not skip any. Important: For this guide Ubuntu OS on your desktop is required!
Make sure to check out our other guide on how to install Android Kit Kat on your Nexus 4!