[jaytaph]

Good points.. we will definitely set up a FAQ with these kind of questions. But to be honest, we might not have an answer for all of them. Why not use Servo's CSS system and create our own, but using v8 javascript engine is mostly a question answered by: "don't know"..

Obviously we cannot write everything by scratch, but we don't know yet where we draw the line.. We like to keep things modular as possible so we can easily swap out the systems we use in favor of better ones in the future.