I just want to say again this is genuinely amazing.
I do wish you put a link on this page, to your articles on Hackernoon, the lighting write-up has been a MASSIVE HELP for me figuring out lighting in a similar way. Again, what you have achieved is just genuinely INSANE.
(https://medium.com/hackernoon/pico-8-lighting-part-1-thin-dark-line-8ea15d21fed7)