"Blank Screen" feature

[andiohn]

I haven't tested it yet, but supposedly this sets a black screen, so we could use this to 'blank' the screen on a schedule. I'll test and report back, but now that it's installed, it may be a bit of a delay for me to test. I might just install raspberry pi os x86 to test it though.

"swaylock -c 000000"

from here (https://forums.raspberrypi.com/viewtopic.php?t=367535)

Then unblanking, I haven't figured it out yet, but we're half the way there.