Install wmmatrix by entering the following commands in the terminal:
sudo apt update sudo apt install wmmatrix
Description:
View The Matrix in a Window Maker dock application
wmMatrix displays The Matrix (from the film of the same name) in a Window Maker dock application. Based on the xscreensaver module created by Jamie Zawinski. . Although it works best with Window Maker, wmMatrix also works fine with other window managers.
Homepage: http://dockapps.org/file.php/id/10
Version: 0.2-12build1
Section: universe/x11