Like person of interest?
Also Simplex.chat
Put a webcam on TV and streaming it to TV
You can host Simplex server and clients
Use BSD/Linux/Ironclad/SmartOS etc etc Open source Operating systems for
Made out of Empty cups
Meanwhile non SystemD systems like NetBSD FreeBSD OpenBSD are safer.
Also Simplex but I find element client very comfortable to use.
Lol