kaleidocycle(6x) on Linux
The text 76243a90e4fc, as Debian 9 (Stretch) shipped it.
draws twistable rings of tetrahedra
Flags it lists
-
-count -
-fps -
-install -
-no-spin -
-no-wander -
-root -
-speed -
-spin -
-visual -
-wander -
-window -
-wireframe