Yes, I'm the author. I began writing this library because I needed something to handle Unicode for another project of mine (that I didn't finish), and I didn't like ICU4C or the other libraries I found.

It's a hobby project I wrote because I find the Unicode standard (sometimes unnecessary) complexity fascinating. And for other people to use, if needed.

The HTML page is static and generated at compile time. Every function has a little form to test the WASM function.