There's only almost no exchange of data- we do get one thing from every chapter which is whether it was failed or completed. This should have been straightforward but I ran into some hangups, mostly with nw.js. The other major bit of complexity is handling the game over and shuffling in and out of the menu.
If you have time, try Chapter 7 (Pandora Unboxed) which is the other gameplay chapter if you haven't already. It's very different from the first and second gameplay segment.
I've never really been one for watching streams, I kind of just threw it in because I thought it would make for some great so bad it's good "music".