It took me a minute to understand what strongSpaces meant [0] but yikes! That looks like a terrible thing! One question though, what is #? strongSpaces vs #! strongSpaces?
[0] https://nim-lang.org/0.11.0/manual.html#syntax-strong-spaces
[0] https://nim-lang.org/0.11.0/manual.html#syntax-strong-spaces
Obviously, the yikes is gone now. It was always an experimental feature, so IMO the fear of it was overblown, but it is a pretty scary idea for a feature.