cubetwist(6x) on Linux
The text dd11a8c35a49, as Debian 9 (Stretch) shipped it.
A series of nested cubes rotate and slide recursively.
Flags it lists
-
-delay -
-displacement -
-flat -
-fps -
-no-flat -
-no-fps -
-no-spin -
-no-wander -
-no-wireframe -
-root -
-speed -
-spin -
-thickness -
-visual -
-wander -
-window -
-wireframe