I have successfully implemented most of the planned features, such as removing the USB-C port and adding a display. Unfortunately, I have not been able to test the display as it has not arrived yet.

The new PCBs were kindly sponsored by PCBWay. The boards are a beautiful black, and ordering them was very straightforward. PCBWay offers a wide variety of customizations, I wasn't even sure what to choose. Contact with PCBWay customer service was always friendly and helpful.

The best part of these new PCBs is how stunning the traces look under the glossy black finish. I could admire them for hours. The only downside of the color is its tendency to attract fingerprints. I tried to take high-quality pictures, but due to my lack of experience in photography and not having a professional camera, the photos didn’t fully capture the beauty of the PCBs or how easily they pick up fingerprints.

I populated the boards with most of the components, except the display and battery unit. For the battery unit, I had to design a protection circuit on my PCB, as the battery i chose (PGEB014461 from powerstream) comes without one. Two additional buttons were added. While the extremely thin buttons I used are great, they are also very delicate. I've already broken one and a half of them without putting much stress on them. If I continue using them, I probably have to model a hull around the board to protect them. (The half broken button is the one in the bottom left corner of the picture) 

Programming the boards without the onboard USB-C port was a bit awkward, so I soldered an external USB port to the programming pads on the bottom of the board. Unfortunately, I haven't been able to finish a full ESP library for the PN7160 yet, so I haven't been able to fully test all the components. However, this will be my next focus to keep the project moving forward.