On Sparkfun and Adafruit you can find electronics that is open source.

Typically these sites provide the EAGLE schematic and PCB files for a project.

I grabbed a few of those and applied the cavity process to them.

What I found is that the original design did not have 3D models assigned so going 3D to Fusion 360 produced no 3D PCB.

It means I'd have to make realistic 3D models for those and also their cavity variants.

Over time one would build a library for those and the process thereafter is fairly simple.

I simply ran out of time to do this to showcase the process before the competition cut off date.

But that is something that I am interested in exploring because I think hobbyists may be keen adopters of the approach.