I have something similar that I built a long while ago. It's a large Do Not Disturb sign. There is a raspberry pi mini that controls power going to it. There is a corresponding daemon running on a PC that checks Discord call status. In call? Power to sign. Not in call? No power to sign. The client/server daemons are in Golang and communicate over RPC.
What does the pi do? Feels like something that could get replaced with an ESP32 if it needs to be remote or just an ftdi chip or some other usb to gpio if not
It's what I had in the drawer.