There is a principle in Halacha known as Kavod Habriyot, which essentially means rabbinic prohibitions can generally be violated for human dignity. My question is, if somebody has a hard time walking to synagogue (either cause it’s too far or too physically tasking), is there an issue with them using an electric scooter on Shabbat? So no lightbulb, but since normally electricity is Derabbanan, could one use it for something like this under the umbrella of human dignity?
The solution is to use a "Shabbat Mode" scooter. The motor is always running at a set voltage and you use a clutch to engage it to the wheels. A better question would be whether you could use a regular mobility scooter if the Shabbat Mode scooter didn't exist.
There is a precedent for ignoring Rabbinical laws for kavod Habruit. I recall a gemara that exempts this method of conveyance from carrying (at least in a karmelit).