That's cool and all, but hear me out.
After spending couple of years in a motorhome I was thinking - why isn't anyone mining on trucks yet?
They have large alternators, capable of powering whole fridge trailer. And there's millions of them. Sometimes they drive with just normal trailer, so by burning slightly more diesel they could use that electricity to mine bitcoin. Just needs a simple ip68 rated box with miner inside, some 3g modem and it could provide the driver with free internet from the company. Bolt it to the back of the cab and plug in to 24/48V system they run on and that's it.
If you're DHL and running 10s of thousands of trucks daily this should make sense (if it's simple enough plug and play setup). I don't think that by running alternator they will burn much more fuel - in normal car running with AC on will probably cost extra 0.5l/100km. So if the truck does 35l/100km it won't be much difference if it'll do 38l/100km (about a gallon per hour).
To take it further - the trucks could be creating mesh network for cars to use, so one can speed on the autobahn at 120mph and stream netflix on WiFi that would just hop from truck to truck as you pass them. Trucks have much more stable connection to mobile internet because they are slow - but mesh network could inform next truck that you're coming and that you will need those packets. So once you get there your part of movie is already there for your WiFi to fetch.
Just putting it here so maybe someone will pick it up and run with it...
I know 100Acersranch (on twitter) was developing device to power miners with 12V directly from solar instead of using inverters to step up to 230V and normal PSU to step down back to 12V (which most boards use). That could be usable for this application.
Same goes for most cargo ships - shit loads of electricity is being wasted because they haven't got much use for it when under way...