Maybe you've created your own AR program for wearables that shows the definition of a word when you highlight it IRL, or you've built a personal calendar app for your family to display on a monitor in the kitchen. Whatever it is, I'd love to hear it.
I built a small websocket server [0] that helps me write simple multiplayer backends. It spawns a process for the first client in a room, and routes subsequent clients to the same process.