Looking forward to seeing it complete! I got into programming languages after reading Game programming patterns, and I'm absolutely hooked. When I saw you were working on this book I worked through the first half of it in a week using JS, loved it.
I started the second half in Rust about a week ago, I don't have enough vacation days to work through it at the pace I did the first half. Finding it a bit harder so far, but I think that's just because I'm still new at Rust.
You may have already mentioned this but will you be publishing a physical copy when your done? I'd love to get one for the shelf.