https://preview.redd.it/9c72yuxi2mda1.jpeg?width=2304&format=pjpg&auto=webp&v=enabled&s=9c24adcfd9d21af75974fca1c85d3831e75b41ea

It's not punched holes, it's a basic 18cm x 12cm pcb. The only carving I had to do was for the mechanical switches mounts as the pcb layout was nowhere near the pin nad support structure of the switches. The bluish background on the top side is just a gradient with my logo printed on a sticker paper and pasted on top ;)

Also the keys and knobs structure and placement is based on my hand and where they rest naturally, quite ergonomical for me...