[jhenkens]

Seems so much effort was spent on the lighting of a sign. Put it on a smart switch with a spare USB power adapter - I'm sure the author has a dozen - and control it via rest, MQTT, HomeAssistant, anything.

Pros: Not physically tied to PC. Cons: Another wifi device, unless you've already got a z-wave/zigbee stack setup you can piggyback on.

[asdff]

Faster low tech solution: put a sticky note that says "in zoom meeting" on the back of your laptop screen or something.

[jaywalk]

Where's the fun in that?