How about this... if it can be done by adding a line to the config... somebody
post the line and we can manually add it to our configs if we want it.
if it has to be coded - please consider having this in the next build with
toggle in settings to turn on (can even be left off by defaul).

I can see the benefit of having this when remotely managing.  If you can't get
into the box with the config that should work, and they reboot and they hear a
second beep that indicates that the box has completed the startup process... at
least you know it is not a DEAD box.
Happens all the time at hotels I support and the hotel has no idea...but a
confirmation beep would be a blessing - did you hear the second beep - yes..
good then the box is working and go on to the next step.