That sounds more or less to be exactly what I’m doing with NPM currently. I don’t see how it’s easier to configure as all I did was fire up the NPM container, log in, and add my host targets.

NPM also handles SSL both standard http verification as well as DNS auth for wildcards.

Whats wrong with NPM?

Its just a computer, nothing more. You would do exactly the same thing as you would on a desktop or vps.

No you do not have to plug in both power cords but if both aren’t plugged in it may blare an alarm. If so plug in the other or just remove the redundant PSU.

+1 for restic. I have additionally started using autorestic with it and have been happy how it operates.