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 TypeScript-based DSL for Karabiner Elements that allows me to work with hyperkey sublayers, thus enabling me to have keyboard shortcuts for pretty much everything I do across my entire Mac: https://github.com/mxstbr/karabiner