grav(6x) on Linux
The text df3d8ab89e9d, as Debian 12 (Bookworm) shipped it.
draws a simple orbital simulation
Flags it lists
-
--count -
--decay -
--fps -
--install -
--mono -
--ncolors -
--no-decay -
--no-trail -
--root -
--trail -
--visual -
--window -
--window-id