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.
Some years ago, I was annoyed by 1password not having any support for Linux and local vaults, and their vault spec was open, so I build a JavaFX app that allows me to read/view my passwords and OTP tokens.