I used the articulating camera arm (https://www.printables.com/model/3407-articulating-raspberry-pi-camera-mount-for-prusa-m) with a bracket in the extrusion - which didn't work as well as I wanted. After upgrading to the revo hotend, and adding the nozzle holder for the mini (https://www.printables.com/model/159519-prusa-mini-bracket-revo-connect) I thought the forward facing mount point should be suitable for hooking up the camera.

The connector is rather wobbly - it's not really designed as a camera mount after all - so I've created a version with additional supports and a rather tight fit. I recommend using that version.

Generally this should work on any of the ‘revo connect’ holders, though the proper tight support might only work on the Mini holder.

This model uses the OpenSCAD articulating connector from the lifecam mount: https://www.printables.com/model/209564-microsoft-lifecam-mount