Why? What did he do?

1. No just linux and an orchestrator, for very small and local deployments I have used k3s.
2. Probably not, but maybe with WSL2.
3. Yes, there are many ways to do it. Some have mentioned helm but you cal also write your own manifests, somewhat similar to docker-compose files.
4. The Kubernetes Book, and just try to get some pods up and running.

I don’t have actual experience doing this myself but in my opinion what you are looking for is kiosk mode. Here is an article https://www.raspberrypi.com/tutorials/how-to-use-a-raspberry-pi-in-kiosk-mode/ Edit: Here’s an article about autoplaying a slideshow in google slides. You can set it as chrome homepage or pass the url as a parameter when staring chrome (I think) https://www.linkedin.com/pulse/google-slides-autoplay-how-automatically-play-step-by-step-jha-rwzac