3DSLinux is insanely fun. I have not used the stock 3DS OS in
about a week, and I do not plan on returning to it soon. Yes, I
cannot use the 3DS for what it was intended for, however...
It's Linux!
I've made a few bits and pieces for it as well! Sure, it's mostly crappy python scripts, but it is still very cool to see the colors on a physical LED change when I run those scripts! I also have configured physical buttons to work on 3DSLinux, which means I can make games for Linux that use the 3DS buttons!