It would help if you had a video or gif. I did command + shift + 5 on a mac and recorded. Asked the coding agent to speed it up, edit out some parts between timestamps, and put it in the docs. It did all that. I started an issue anywhere on GitHub, clicked the upload button, uploaded it, grabbed the URL, the coding agent did the rest. It was extremely easy. (Not too late!)

I'm trying to turn my personal webpage into Breakout.

If you are looking for some high quality simple JavaScript games to incorporate have a look at Jake Gordon's Games [0]

[0] https://jakesgordon.com/games/

https://en.wikipedia.org/wiki/Loading_screen#Minigames