I could use a regulator for running an RPi from a 12V source. I mean a regulator with just a little more voltage than 5.0V. This could be a buck or a buck-boost set to 5.1V or 5.15V. Ive seen these for plugging into the wall, but my application runs off 12V/solar. It could even be an adjustable regulator. Ive had some bad luck with my system (frying RPis and components) so I will only trust an adjustable regulator with a worm screw potentiometer. I also do not want to have to modify any board resistors to make an existing regulator work.
Someday in the future, can you think about making some of these? (5.10-5.15 Volts or worm-screw adjustable).