The second version of the PCB and case just left the @Elecrow fab and should arrive here early next week.

I made the following improvements:

• Added a qwiic connector, so you can extend it with sensors. I decided against having a 12-pin connector like in all the other PewPews, because this is mostly supposed to be for the games, but I still wanted an easy way to connect things.
• Proper footprint for the kind of crystal oscillator that I have.
• Swapped places of the USB and speaker, I think it's better when the USB plug is further from the edge.
• Fixed the short on the speaker.
• Moved the reset and boot jumpers to the back of the device, so that you have access to them with the case on.
• Added vias on the SWD and SWC pins, so you can access them for debugging.
• Added a cutout for the switch, and moved the switch deeper, so it no longer sticks out of the device's outline.
• Used smaller holes on the front plate, so it should work with the nice black screws I have.
• Rounded the edges on the case elements.
• Added a coutout for the qwiic connector.
• Moved the labels for the buttons to make them more visible.

Overall, it's all small changes, but they make the device a little bit more convenient and nice. I considered switching to USB-C connector, but I couldn't be bothered preparing the footprint for it.