I could be wrong, but based on the Wikipedia article it seems like it’s more trying to be a python replacement than a rust/c++/Java/etc replacement. The big thing with rust is that it’s rules allow memory safety without a garbage collector, while unless I missed something it seems like nim just uses a garbage collector. Not that that’s necessarily some huge problem or anything, but you know, different purposes

Tab characters are space efficient and configurable for each person in their editor. Space characters are consistent between developers.

Solution: each tabspace indent is a random width, making it both inconsistent and non-configurable. Also, each character is the size of at least four regular characters, so it’s not even space efficient