xkbbell(1) on Linux
The text 6d5cf14bf2c3, as Debian 13 (Trixie) shipped it.
XKB extension user utility
Flags it lists
-
-bf -
-dev -
-display -
-force -
-help -
-kf -
-nobeep -
-synch -
-v -
-version -
-w