Show HN: I made a community sourced fitness routine database 5 years ago
(shameless self-promotion but) We're actually building something just like this. We're calling it Formguru, here's an example of my squat in action: https://www.formguru.fitness/video/c96fa975-fd9e-4912-8f60-1....
Right now it's more focused on form feedback, but adding live audio cues is on our roadmap. I'd love to know what other features you'd want us to build.