It can be used by as a regular windows program. But it is meant for the metaquest 2 with virtual desktop installed.
Run virtual desktop and enlarge the screen. set it to max curve. activate headtracking. set environment to void.
here is the explanation of the icons.
a = auto shutdown : program ends after one hour.
c = clock : displays a clock at the bottom of the viewport.
p = pause : starts and stops the session.
r = restart : restarts the program.
q = quit : quits the program.
m = moment : plays a sound every ten minutes during the session.
s = ends the session after thirty minutes.