Dr. Go on, take everythingBack on the tools and today working with three different brands and styles of e-bike, and two other totally different bikes, and 4 different brake systems one which was an adventure in lo-fi hydraulic rim brakes routed through the frame which required significant OTF engineering...
...this still holds.
Also #openforconsulting on this stuff.
https://www.spatialised.net/the-bicycle-model-of-interoperability/