This is very cool!  
We our also participating in the tournament, with the Kumuly Pocket project. One of our future ideas would be offering some AI functions to our merchant users in the app, so they can for example create a logo if they do not have one yet, or so they can remove the background of the photos of their products and have better product photos. When we implement that, we should definitely do it based on what you are using and building on Nostr, great job!