"One more thing: Raspberry Pis can be a bit unstable when running over long periods of time, with the repeated writing to the SD cards eventually breaking them. I am running them in read-only mode using OverlayFS, kind of like groundhog day for computers
Beaver"

"This means that you can pull the plug at any moment without the risk of damaging the file systems. We run the whole setup on a simple timer switch. The downside is that if something goes wrong, you can only view the logs until the system is rebooted."