The alert fires at 2:14 a.m. Disk usage on the app server is at 97%. You SSH in, half awake, and run the command everyone runs: ```bash df -h ``` ``` Filesystem Size Used Avail Use% Mounted on /dev/nv...

It is 9:07 a.m. and the report that should have been in your inbox at 6:00 is not there. You SSH into the server, run the script by hand, and it works perfectly — output, exit code zero, everything. Y...

It always happens at the worst possible moment. A deploy that ran fine yesterday hangs halfway through. The application starts throwing 500s. You SSH into the box, and there it is, sitting in the log ...

It usually starts with a small, forgettable task. You write a script that backs up a folder, or clears out old log files, or emails yourself a summary. It works beautifully — the first time, when you ...
