Watch out, I'm a hardware designer now! My first board is here and it works!
Super happy with the "ambient light" effect:) There's one LED shining at the back into the hand, and another behind the screen, giving the impression of light passing through the PCB. Quite mesmerizing.
I still need to put side LEDs on (one for each of the touch pads), but those tiny SK6812-4020 turned out to be way beyond my amazing soldering skills 😅