Whoa, I haven't been keeping up to date about this, there seems to be good related discussion here: https://github.com/ziglang/zig/issues/7295

I'll hope for some future news of Zig having vector and complex number support! It will be a great day for fast ray/path tracers :)

Unfortunately, vectors in Zig are the kind you use in SIMD and not in graphics programming. Perhaps there's some overlap, but I'm unfamiliar with both fields so I can't say to what degree.