Do you mean update_zynthian.sh … ? Cos that’s what I’ve just started . . . 
Successfully !!! 
I had reversed my i/0 connector 
So I’ll rebuild a new connector with a tasty bit of old disk drive ribbon cable . . .
The Two left hand knobs behave nicely, both rotate in the correct orientation so that’s that issue answered in the case of my particular rotary encoders, the right hand pair less so.
I suspect I need de-bounce capacitors . . . .
Nopr seems I don’t need de-bounce . . . hairline short on ls/sel board between OV line & sel switch . So Sel permanently pushed 
All rebuilt with much neater wiring loom…
Flip round the select encoder wires to get it the ‘right’ way for control surfaces ( it actually felt more intuitive the other way for menu’s on the left side of the screen initially…)
and it all works . . .
So, in conclusion.
He have a zynthian built into a standard hifiberry box with a hifiberry Amp+
It has no 5 pin DIN MIDI in but there isn’t really room for the socket.
Who needs a mixer?
I might have juggled the encoder wiring around to keep all the wiring on the same side as the encoders and avoid the wire 31 leap across but that would need some more mapping.
Now to start using the beast . . .