I had the same question when I first saw this post because the title is kinda generic, but the description is right at the top of a page: a Scratch mod with a compiler. There's more detail on the actual tool's page:

> TurboWarp is a Scratch mod that compiles projects to JavaScript to make them run really fast.

And Scratch has it's own resources, because it is it's own project; the target audience is clearly (possibility prospective) Scratch users.