Did Modula-2 had the range of compile-time metaprogramming facilities that Zig has (and is obviously a big part of the language design?)

That is the only thing that Zig offers over Modula-2, which without an ecosystem is hardly worth of change, when it is just as safe as C and C++.

Also probably the only language that is able to beat Objective-C in the amount of @ per line of code.