First and second iteration of Zynthian builds I made. The build is based on RasPi4 and a MCP23017 multiplexer. The prototype used external USB KOMPLETE AUDIO 1 soundcard, while the CigarBox build uses HiFiBerry DAC2 Pro stacked on top of the RasPi GPIO. To finish the CigarBox project, I still have to install the 4 rotary encoders with these beautiful brass knobs I got from my friend. Special thanks for those goes to T-Ral and Mr. Pok 😉