Render

The case is made to be paw shaped, designed in two halves which are supposed to be put together with 4 different M3x8mm screws.
It has a slot to hold the battery, 4 screw holes to hold and tighten the PCB! The top case features 4 holes for the buttons and a space for the screen.n.

Zine

The PCB is 2 layers with dimensions under 100 by 100mm, it is designed to be in a paw shape has some cool silkscreen with red color, cause red colored PCBs are cool..

PCB design

Here are the schematic designs,

Schematics

It was made for fallout hackclub with the amazing guide made by @Tanuki ( huge credits to him )

That is pretty easy,

1. Order all the parts going through the BOM
2. Start by soldering all the components on to the PCB
3. Put the buttons in the holes, screw the PCB to the case and screw both the halves together
4. Flash the Xiao with firmware and boom
5. Start playing with your tamagotchi