> heat-powered device? Propane gas appliances such as refrigerators and freezers are common 'off the grid'. As one would 'fork' off a code base (e.g. before

> heat-powered device? Propane gas appliances such as refrigerators and freezers are common 'off the grid'. As one would 'fork' off a code base (e.g. before systemd), the same can be done with farm / self sufficient technology. Check out _Farm Tools_, by Michael Partridge. Everything I did when I moved to a rural area was wrong because I was using a late 20th century mindset. The late 1800's had tremendously better ways of doing things. Try thinking of the Amish as late adopters, instead of being backward. Some of the things they do, such as converting electrical tools to use compressed air, will give some great insights.