KiCad boards from 2 GitHub repositories tagged “chiptune-player”, the most starred first; open any of them in PCBKit.
LouDnl/USBSID-Pico
USBSID-Pico is a RPi Pico (RP2040/W RP2350/W) based board for interfacing one or two MOS SID chips and/or hardware SID emulators over (WEB)USB with your computer, phone, ASID supporting player or USB midi controller
LTVA1/STM32CrapSynth
A crappy hardware synth using STM32F303 and 4 AD9833 waveform generators
LouDnl/USBSID-Pico
USBSID-Pico is a RPi Pico (RP2040/W RP2350/W) based board for interfacing one or two MOS SID chips and/or hardware SID emulators over (WEB)USB with your computer, phone, ASID supporting player or USB midi controller
LouDnl/USBSID-Pico
USBSID-Pico is a RPi Pico (RP2040/W RP2350/W) based board for interfacing one or two MOS SID chips and/or hardware SID emulators over (WEB)USB with your computer, phone, ASID supporting player or USB midi controller