A month-long course aimed at those who aspire to get Linux-related jobs in the industry - junior Linux sysadmin, DevOps-related work, and similar. Learn the skills required to sysadmin a remote Linux server from the commandline.
probably because at appears to just be for scheduling single tasks, not recurring ones - but thanks for mentioning it, since I wasn't aware of it before.
Ah, my bad. I saw the systemd timers thing, and not knowing much about systemd I figured that was an alternative closer to at than cron. Looks like it's more of another unneeded replacement. I use at all the time and only really edit my cron a few times a year. I'd think that I'd learn to read entire articles before commenting.
I honestly wouldn't recommend this for any server, and probably not for a workstation. This is useful for learning but could easily be a nightmare when troubleshooting an issue on a remote machine.
It's always a great idea to do updates when you can give them your attention. Even if it's you triggering them via ansible or other automation.