Just superglue a neodymium magnet to the bottom of your bike shoe and hover it over the sensor lines in front of the stop light.

I’m still using a (Son) dynamo Busch and Müller light from a decade ago on my touring bike. It’s so reliable and the beam pattern is better than on my car. I also have schwalbe marathons and ortlieb panniers on that bike. Such a good setup for a bike built like a tank. It might be fully German if it wasn’t a Fuji with a Shimano groupset.