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 have a esp32 board that listens to voice commands and turns on and off the lights in my workshop. For fun and for the kids it has a rainbows mode since it controls multi color led strip of lights.