sndiod(8) on OpenBSD
The text ab1571183cc8, as OpenBSD 6.5, OpenBSD 6.4, OpenBSD 6.3, OpenBSD 6.2, OpenBSD 6.1, OpenBSD 6.0, OpenBSD 5.9 shipped it.
audio/MIDI server
Flags it lists
-
-L -
-U -
-a -
-b -
-d -
-e -
-f -
-j -
-m -
-q -
-r -
-s -
-t -
-v -
-w -
-z