Thank you so much for all your work on this! I ran through the first part (interpreter in Java, which I ended up doing in Scala for fun) a few years ago, and so much about this sort of thing was demystified for me. I used to think building parsers, tokenizers, AST builders, and interpreters was some sort of unapproachable black magic, but now I realize it's not actually that difficult.

I started working on the second part (decided I'd do this one in Rust instead of C), but got distracted by other things and never got around to picking it up again. I look forward to getting back to it!

Thanks again, and congratulations on getting to this publishing stage!