Patchbox is a great idea and could save a lot of hassle with using the PI’s for audio, but it hasn’t worked for me so far.
I’m using a PI zero W and when I have a USB keyboard plugged in (through a OTG adapter) the PI hangs and does not finish booting up. The power adapter should have enough power and I’ve tried two different USB keyboards.
I’ve also been unable to use SSH. I add the correctly configured wpa supplicant file and the ssh file to root, but the patchbox will not allow me to log in.