Not much for myself, like many others. But my backups are manual. I have an external drive I backup to and unplug as I intentionally want to keep it completely isolated from the network in case of a breach. Because of that, maybe 10 minutes a week? Running gentoo with tons of scripts and docker containers that I have automatically updating. The only time I need to intervene the updates is when my script sends me a push notification of an eselect news item (like a major upcoming update) or kernel update.
I also use a custom monitoring software I wrote that ties into a MySQL db that’s connected to with grafana for general software, network alerts (new devices connecting to network, suspicious DNS requests, suspicious ports, suspicious countries being reached out to like china, etc) or hardware failures (like a raid drive failing)… So yeah, automate if you know how to script or program, and you’ll be pretty much worry free most of the time.
I hate short variable names in general too, but am okay with them for iterators where i and j represent only indices, and when x/y/z represent coordinates (like a for loop going over x coordinates). In most cases I actually prefer this since it keeps me from having to think about whether I’m looking at an integer iterator or object/dictionary iterator loop, as long as the loop remains short. When it gets to be ridiculous in size, even i and j are annoying. Any other short names are a no go for me though. And my god, the abbreviations… Those are the worst.