Nice work. I'm still clinging to my conventional bikes, but anticipate when something will eventually push me over the edge, such as old age or a long distance commute. I've been reading whatever I can learn about e-bike technology so I'm ready.

So far the simplest assist I can think of would be a front wheel hub motor and a switch that turns on a constant amount of torque. This would still let me control my speed by how hard I pedal. Of course I'm scratching my head over how I would control it, since it would probably not be an off the shelf controller. But I'm also fascinated by the electronics, and having to design my own controller would be a benefit, not a liability. I also have an obsession with knowing how things work, that I have to contend with.

Of course all of this is until I think of something better.