Free Materials and Equipment Time
How to make the materials and equipment execution time approach the negligible cost of running a computer or a mobile phone?
The "Free-Software" in hardware is not "Free-Designs," because the parity in capability to "run" them requires "Free Materials & Equipment Time."
Electricity is nearly free (compared to the requirements to run a modern personal computer), but materials for production and the time of equipment needed to process them, is not nearly free.
The problem with factories is that they are expensive to refit to develop another product. You have to make metal moulds or something. And retooling. Maybe the first X units could pay this cost divided by the unit count.
Material costs have to be almost free they're a fraction of manufacturing costs as they are bought in bulk.
My computer costs £5-£10 a month to run I think.
If I turn it off my bill goes down by around that amount.
I've seen at least one developer deliberately move processing to the client mobile app because they don't pay for processing there. The customer does.