Some people think Amish don't use electricity, but that's not true. You'll find quite a few of them with things like solar panels and LED lights. These things tend to have very long lifespans and no grid connections limiting needs from outsiders.
I guess if the unit of group analysis stays small enough, they can avoid the https://en.wikipedia.org/wiki/Tragedy_of_the_commons .
The inherent built-in futility limits the virtue of this approach.
Indeed, the smaller "tribal-esque" approach of the Amish may be considered similar to that of the Native American tribes, and American History seen as a natural experiment of how the Amish would fare if government security were to vanish.