itch.io

Probably to help game designers that would like to implement this functionality in their own work?

It's a tech demo which, from Wikipedia, "is a prototype, rough example, or an otherwise incomplete version of a conceivable product or future system..."

I started working on this with intent to make a game, but due to various issues I was unable to turn it into a game with any objectives. So instead of just throwing it all away I published what I had into a tech demo to show off what I did accomplish.