cglm must support Metal and Vulkan (and maybe DirectX). To do this cglm may provide alternative functions for alternative NDC coordinates. Or we could do that with preprocessor macros. But providing extra functions will provide ability to switch between graphics APIs without rebuilding the code.

Resources:

1. https://developer.apple.com/metal/Metal-Shading-Language-Specification.pdf
2. https://metashapes.com/blog/opengl-metal-projection-matrix-problem/