sndiod(8) on OpenBSD
The text 2dcdd5e3f4f6, as OpenBSD 6.8 shipped it.
audio/MIDI server
Flags it lists
-
-F -
-L -
-Q -
-U -
-a -
-b -
-d -
-e -
-f -
-j -
-m -
-q -
-r -
-s -
-t -
-v -
-w -
-z