hello_xr(1) on Linux
The text 66c772daea10, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
A sample OpenXR application.
Flags it lists
-
--blendmode -
--formfactor -
--help -
--space -
--verbose -
--viewconfig -
-bm -
-ff -
-h -
-s -
-v -
-vc