Yes, plus introspection. Zig tries very, very hard to avoid macros, so macros are an anti-feature from Zig's perspective. That you could do what Zig finds important for its domain, like conditional compilation, writing a typesafe println, generic types, and generating pretty-printing routines all in simple Zig without macros is a cool discovery. I don't know if it's true, but I think the desire to avoid macros at all cost was a bigger motivation for Zig's design than, say, generic types.

In other words, there is a capability here that Nim really, really wants, and that Zig really, really doesn't want, so on that front they are not competing in their designs.