Even if you didn't have Output Pin, couldn't you just declare a sum type? enum MyPin { P0, P1 } Edit: feel free to ignore, read your answer somewhere else abo

Even if you didn't have Output Pin, couldn't you just declare a sum type? enum MyPin { P0, P1 } Edit: feel free to ignore, read your answer somewhere else about this You would then have to pattern match when you read the value but I don't see a reason to reach for macros or anything more complicated. That said, really enjoyed the read (and I'll definitely try zig at some point, if only for the speed / compile experience), even if my experience with Rust didn't match yours; my background is a bit different though, I worked with C++ and Haskell in the past, which definitely made rust feel almost natural. Overall I'd say that the compiler helps me not to keep a lot of rust syntax in my mind and just try things until it works