You've really had a great idea, and maybe you can save lives with this. Do you process the images yourself? Do you pass them to some AI? How does it work for privacy? Do you delete them afterwards? Thanks and congratulations.
Single file including all html/js/css, Vanilla JS, no backend, scores persisted with localStorage.
Deployed using ubuntu/apache2/python/flask on a £5 Digital Ocean server (but could have been hosted on a static hosting provider as it's just a single page with no backend).
Images / metadata stored in an AWS S3 bucket.