As a Linux enthusiast I have been using Ubuntu since version 12, and recently I had upgraded my computer from 14.04 to 16.04. Unfortunately, I made a mistake and I accidentally wiped my home partition. Fortunately, the code for Letter for Mimi 3 is under version control, so I could just re-clone the repository. However, the progress I had made on the Voronoi cell game has been lost almost entirely. This is a good lesson to always use version control when creating anything on the computer!