Kind of an old thread, but I thought I would share my "best attempt" at a clean "headless VST + tablet sheet music reader" on the NV-10. It's got the DP, Mac Mini, Chromebook tablet and line conditioner just about as clean as I can get (without introducing a lot of inconvenience if I have to access/unplug anything to clean/fix). What I like best is that very little is needed to fully control the Mac--the tablet VNCs into the Mac (think Cybergene and some others recommended this solution) with a free app and nearly everything can be done at the bench.
Overview - only the headphone cable and wall extension cord are easily visible.
From the back (shot into the mirror). Extension cord to wall, DP power cable, tablet power cable and Mac power cable all feed into a cable management box.
The inside of the cable management box. The large block is a line conditioner (since the DP turned itself on on blared loudly once during a brown out!)
Shot of the bottom of the cabinet while lying on the floor. The front of the DP is at the top, and the 3 pedal rods are visible at the bottom right. The shot shows the 10ft headphone cable, a 3.5mm audio switch box going from the Mac, to the Line In on the DP, the Roland UM-ONE Midi adapter going to the Mac, and the Mac Mini velcro/bolted to the bottom. The Mini just happens to be arranged such that the cables can be routed nicely , the power button is accessible without feeling around, and the power LED can be seen in the mirror when looking at the back of the DP.