A few days ago, I was asked if the system of a customer would reflect a time change. More exactly, whether the Linux servers would reflect the time change in Morocco, as it changes every year during Ramadan. Although I know that the daylight saving time is correctly applied in France, as it is quite predictive (we apply DST time from the first sunday of March, until the latest sunday of October), I had no clue for Morocco, and I needed to know more. But before answering this question, let’s review how Linux systems keep their time accurate, and how they display it for human beings!

Qiskit is an opensource python framework, supported by IBM, for working with quantum computers or simulators.

Although this framework can run on a laptop, I'm often short on RAM, and my MacBook Pro swaps when I'm running too many Firefox instances, and all my tools. In addition, starting coding implies running some commands to launch en environment.

Having a ready-to-use Jupiter Notebook server in a homelab server would be more convenient, so, let's install it there as a service!

Some actions should never be done during a system update. Rebooting or shutting down the system is one of them.

So, what's more stupid than trying to remove a USB keyboard during the update, except unplug the power cable instead? Yes, I did it, and my machine couldn't boot afterward...