Sysadmin Antipatterns

You keep performing the same anti-patterns over and over again. Doesn't matter if you got them from a styleguide, an LLM, or some blog that called it best practice. It's the same shit, and then it ends up in production and I fucking get woken up at 3am... or expected to fix it.

These are bite-size rants so you stop doing that before somebody's pagerduty gets lit up like a christmas tree. Why the copy-paste is wrong, and what you should have done instead.