I think Zig not having a way to "modify the environment map" is a good thing, personally. Global state should be avoided at all costs. If a downstream library's setting isn't exposed through a config struct, and can only be configured through environment variables, it was misdesigned.

> Therefore, we do make a C call to store the env variables that are parsed

lol, what? This is definitely not the way you should be trying to do whatever this is trying to do.

I'll try to find it, and edit if I can, but I'll try to find the context for the sister thread discussing why Zig intentionally doesn't support setting env vars for a running process.