Toffler's book Future Shock has some interesting discussion about advanced production techniques allowing high degrees of bespoke customisation with very little

Toffler's book Future Shock has some interesting discussion about advanced production techniques allowing high degrees of bespoke customisation with very little additional costs beyond a generic production line. We're still a long way from there RE smartphones, though projects like the PinePhone with hardware switches for things like microphone, camera, WiFi etc, along with a less locked down OS perhaps show a path to achieving this.