It's good that you have a README and License file (main criteria for open source category). However, your README only has a title. Add some information about the game, some screenshots, maybe how you built it etc. If you vibe coded the game, you can also have AI generate the README for you which is something at least ;)
For a vibe coded game - not bad! There are some physics glitches with the ball going part way through the disc, and it'd be great if you added some sound effects and/or music to the game to make it a little more immersive. Great job!