I used to run that at work, but I'd invariably get calls or emails that "your computer is crashing over and over" so I stopped.

Video: <https://www.youtube.com/watch?v=YIqbMCfR3r0>

Still my screensaver of choice after two decades. Even after it's tricked me into a forced reboot two or three times...

https://man.archlinux.org/man/extra/xscreensaver/decayscreen...

Decay Screen for X11. Written by David Wald, Vivek Khera, Jamie Zawinski, and Vince Levey; 1993.