Out here in the country, there are lots of tinkers/machinists/farmers that have plenty of know how. For instance, was at a machine shop yesterday so far back in the mountain that you have to pack a lunch to get there and back. In the shop is a 3D printer, 4 axis machining center and cnc laths. This place never ceases to surprise.

But this one's got me, a Hydrogen Generator to convert water to run an auto? One of my neighbors swears by the device, never heard of it before now. Will look forward to the back yard experiment he has started.