In 2016, I made a very trivial proof of concept with very cheap materials and whatever electronics I had back then (Arduino Uno, Raspberry Pi and Lego NXT Mindstorms). I made a robotic platform which could move in one direction and control a scalpel. The Raspberry Pi, served as the main unit, on which there were connected an Arduino Uno and the Lego NXT Mindstorms. On the Raspberry Pi, I installed a simple web server and I was able to remotely via HTTPS download commands to the NXT. Moreover in the backside of the moving platform, I attached a small microscope on top of which there was a Raspberry Pi camera module.