I have built the arachnid platform and it works with the internal sounds but not with the EEPROM sounds. I have an EEPROM burner and spare EEPROMS, so I can burn one. I contacted pedalpcb a week ago about it but haven't heard back yet. I suspect they are really busy, as they have good at answering in the past. Anyway, while I wait I am pretty keen just to get this finished. Does anyone have the firmware so I can have a go ay doing it myself?