The README for the project is one of the most detailed READMEs I’ve ever seen. The landing page for the website has as much detail as you can reasonably expect, even including a couple of feature demos. There are clear links to the docs and the code.
The developer has clearly put a lot of thought into this content. Worth taking a second or two to see what’s available before criticising it.
This library makes use of modern composable components, is declarative driven and not imperative; and doesn't do immediate rendering in all cases.
It can target incredibly different backends, e.g. DOM/canvas/raylib.
All of this in modern C as a `.h` library alone.
These are great features and not just a 'youngster discovers' project.