[j-james]

I have a shortlist of pain points:

- Tooling is not great. The language server has a tendency to silently crash on occasion, and it's no rust-analyzer to begin with. A tooling rewrite has been delayed behind proper incremental compilation, which has been delayed behind ARC/ORC...

- Interfaces ("concepts") are experimental and there are two differing implementations.

- It lacks proper sum types and structural pattern matching in the core language. There are a number of quite good macro-based libraries that provide for this, however: fusion/matching, andreaferretti/patty, beef331/fungus, alaviss/union...

- Optional types are not the standard: the stdlib will throw exceptions. This is more so a personal preference than anything.

But that's about it. I do like Nim quite a lot.

[ElegantBeef]

> It lacks proper sum types

We've talked about this before! You know it has sum types, just not the variation you want.

[j-james]

I know, I know! I do very much like the "type wrapper" approach more than the "object variant" approach.

Perhaps in the future we'll simply have both and have no reason to debate ;-)