I admit that this is a bit of a stretch for the QICBoard system, but the Ornament and Crime is so fun that I couldn't resist trying to built on.
This demo is built on a QICBase_ERL, a 34-HP Eurorack-compatible base which gets its power from the Eurorack case.
The core is a Teensy 3.2, just like the original O&C. The extra boards are:
a 4-channel CV DAC, electrically compatible with the original O&C version,
a 2-channel trigger input, also compatible, and
a board with encoders and feedthroughs to connect to a top-mounted OLED display.
That last board is a bit of a cheat: the encoder shafts don't quite fit into the 1/4" holes, so you need to (carefully) ream those holes.
Because I was only running the envelope generator, I didn't install the analog input or trigger output boards, demonstrating the "a la carte" nature of this kind of build.
DAC and trigger module schematics are on the board pages. The user interface board: