This is my Hackpad project for the Hack Club Stardance Challenge. I followed the Hackpad tutorial and added a fourth key as well as some minor case customizations (rounded edges and a cat logo engraving). The case is designed to fit a custom PCB for four keys and a XIAO microcontroller.
A custom extended version of the open source Kappy printer with a heated bed!
It's a camera that hides inconspicuously outside, and it alerts me by notification if it sees a cat.