Interesting. Reminds me of something I built a few years ago. To demonstrate low latency for a proxy we built, we decided to do a small publicity stunt at a lo

Interesting. Reminds me of something I built a few years ago. To demonstrate low latency for a proxy we built, we decided to do a small publicity stunt at a local conference. We found an old pinball machine, managed to reverse engineer and findbfrom patchwork docs and some experimentation that we could send some commands to control flillers over a serial port. Then we built a web application that would receive commands over http, and forward them appropriately. Ran this on a laptop connected to the pinball machine. Then we setup our proxy on a raspberry pi, setup some mobiles to access the webapp via the proxy, and had a fun little demo. Users can tap left and right halves of screen on mobile web page to send requests, and could see the pinball flippers move. Our stunt was that see, it's pretty fast and low latency even with some simulated background load on the system.