I once forgot to install the Linux package when I was installing Arch on a system. Linux even let’s you not use Linux, if you like.

It didn’t boot.

We used to have good, strong open source tools made out of C (which is a lot like steel - it can only be worked by blue collar computer nerds with muscly brains). Now that steel core is corroding because of the influence of hackers and other white collar computer sorts with their creative problem solving, and unintended uses of memory.

That new corrosion is called rust, and it eventually appears on every C project that’s left outside, unless someone comes along to brush it off occasionally.

“Sorry, someone else has already asked a question about python.”

Systemd is trying to stop a service. To do an action to a service (or any unit), it runs a job. The job to stop a service is called a stop job. Once the stop job is taken off the job queue, the stop job is running.

The method of stopping a service is configurable, but the default is to send a kill signal to the MainPID, then wait for the process to exit. If it doesn’t, after a timeout, the kill is reattempted with a harsher signal.