shadow: browser engine made almost entirely in JS
A browser(/web) engine essentially takes in a URL(/etc) and gives you it rendered into a window for you to view and interact with. <shadow> does this too, almost entirely from scratch, made in JS. It runs in your browser! Node backend soon too? The host browser(/etc) is only used for networking (fetch) and renderer backend (<canvas>).
I feel like I have opinions, but I can't express them. This is equal parts genius and madness.