[theamk]

It's mentioned in the bottom of the page, but I'd like to highlight that "molly-guard" [0] provides a very similar functionality for at least 10 years.

Since it's so old, it is present in all the systems - "sudo apt install molly-guard" on your server, and your shutdown, reboot, etc.. are all protected, no need for 3rd party tools.

[0] https://www.unix.com/man-page/debian/8/MOLLY-GUARD/

[qwertox]

I use that in combination with base16-shell [0] to set different color profiles as a protection.

[0] https://github.com/chriskempson/base16-shell