Zig can't see Nix Includes

This is sort of a workflow question for those of you who use both Nix and Zig together. I’ve been working on a games project with a friend using Nix as our development environment to ensure reproducible builds. Its my understanding that I could add a nix pkg, say for SDL3 to our projects flake and that would provide the headers and source. And for SDL and vulkan that appeared to work and the zig compiler was able to find those and build. This doesn’t appear to be the case for every library. I c...