it is extremely weird to me that someone would write something like this in javascript. it is very, very wrong, to me. like ... "you need your head examined" wrong.

That will be an unpopular opinion on this site, I know. Javascript is so slow, so bloated, and so far from the CPU that it is almost like building a railroad bridge using plastic. Could you build a railroad bridge out of plastic? yeah I'm sure that could be done. Is plastic the best material for this application? Not in the slightest. Javascript is not the right tool for anything outside of the browser, to me.

But, it's 2025 and plastic is everywhere, even inside our brains, so what do I know?