The very first line of their README: "Blender's user interface, as a library you can use from Python, Rust, JavaScript (React, Svelte), C, C++ and Dear ImGui."

Then, the README very quickly continues with "What BUI is" and "Why BUI exists". These are all the exact things I want to know, ASAP, when I encounter a new project. The language reads perfectly fine to me.

Here is another example of a nice README: https://github.com/mpv-player/mpv

Do you know what I don't want to know first? What the startup time is, what language you wrote it in (because you think it makes your project cooler), some other random internal details about the performance of the thing, when I don't even yet know what the thing is.