Maybe the next instalment for this “disruptive technology”. A custom 3D printed insole from Filaflex. Open core printing for ventilation.
Most of the cost of the orthopedic insert (in theory) is figuring out what the material and shape should be, no?
You’d have to figure out how to get a custom shape that fits you and fits your shoe. I think acquiring a quality scan of a foot is the toughest part. Changing the density of the insole is pretty easy in comparison, I think.