Hi! I'll be ready to release the source code when I'm done with project. In this sense, I'm definitely closer than I used to be, but I'm not there yet :) What part of the code are you interested in? The one about rooms/tunnels/doors?
Mostly yes. Our users are kids learning game dev and it's hard for them to understand what 'a good level' is. This shows them and gets them thinking about spatial design and level design.