
What I do for that is turn it around, instead of checking for a failure I alert on the absence of a success. backrest has hooks, so on snapshot success it pings a push monitor in uptime kuma (healthchecks.io works the same), and if no ping arrives in ~26h it alerts. That way it catches the backup that never ran, which is the one that scares me the most I guess

8gb with 70+ mods is way less than I expected, nice. capping it in docker is smart too if it leaks at least it can’t take the rest of the box down with it