[Groxx]

Since I'm not familiar with Roc and am looking at example code that has an unknown amount of boilerplate added or removed compared to normal code...

What part of that example is bad, and the lack of macros means it stays bad? I can come up with some possibilities (e.g. response mapping), but I have no idea if they're valid or not because I don't know if that's just due to being an intentionally explicit example.