> Probably the reason that the code "worked" from a single prompt

I took a look at the repo, and the whole thing is 12 lines of JS and some basic HTML and CSS. I'm not surprised at all it worked the first time from a single prompt. No need to copy someone else's project for something so simple.

Good that you did.

At least the author clearly delinated that it is indeed sloppiest of slop.

adding levels of indirection/abstraction is a common engineering move, especially in software engineering.