I have over 20 years of experience, I run a team, and I can code something like this in my sleep, as well as any average developer (but maybe "average" is lower than where it used to be in my day). Don't talk down to strangers on the Internet so arrogantly, you only end up embarrassing yourself.

I went to check what this code does (beyond a base conversion with a custom alphabet) and I laughed my ass off.

1. Literally TWO-THIRDS of the "library" is a clumsily put together ban list of slurs. Hardcoded, in the library. This DOES NOT belong there.

2. It also contains alphabet checks like say repeated letters, which it'll run every single time it produces an ID, instead of statically checking the alphabet ahead of time, and just using it in production... or even simply selecting an URL-safe alphabet and sticking with it.

3. Despite all the checks, block lists, the default alphabet doesn't do the most elementary thing when producing alpha-numeric ids: exclude letters and digits which look similar, and so will look identical in some fonts. Nasty when you have to write an ID from say a screenshot, or a poster, or what have you.

All in all, that's only borderline more utility than the infamous "leftpad" library, and it may actually be harmful in practice, because it contains a bunch of specific and/or superfluous concerns by the author, almost as if they're trying to justify why this is a library in the first place, but which will likely not align with the precise requirements of the users and their project business rules, while it excludes others (like the one I mentioned in point 3 up there). But I'm sure the kids will be impressed.