2 layers13 × 1.4 mm

PicoX7
SloeComputers/picoX7
Software simulation of the Yamaha DX7 with a MIDI interface for the Raspberry Pi Pico
31 parts43MIT
KiCad boards from 1 GitHub repository tagged “dx7”, the most starred first; open any of them in PCBKit.

SloeComputers/picoX7
Software simulation of the Yamaha DX7 with a MIDI interface for the Raspberry Pi Pico