Saw this a while back. Hasn't been posted here yet. Not my project, but an amazing project.
https://github.com/ZallaxDev/emerald-3ds
https://emerald-3ds.com/
Emerald 3DS brings the adventure to Nintendo 3DS as native homebrew. The game runs on the top screen, while a dedicated touch interface on the bottom screen replaces the START menu. Enable the optional voxel overworld to explore supported areas from a new angle.
https://github.com/ZallaxDev/emerald-3ds
