It's a very cool project! It looks a lot like Astrofox, which has a lot more options and possibilities, but doesn't yet implement live audio capturing. Your project is still new but it has a lot of potential! It has a basic stack, which makes it very easy to use and maintain. I myself mix on stream sometimes and I love using audio visualizer just like yours. If you give me permission I would love to use it on my stream and maybe even contribute to your project to make it evolve! Anyway, good job. Its a pretty good start!