WebC from Eleventy

It wasn't immediately clear how this new Eleventy thing, WebC(omponent), compares to "actual" components, like Vue and Svelte components.

Also, WebC is framework independent, listed under "template languages" ?! More confusing aspects.

But after watching the Crash Course in Eleventy's new WebC Plugin and reading more carefully the Introduction to WebC I can see how this can be the "next big thing" for Eleventy.