Last year there was some work for getting Gallium3D Zink working on macOS for this OpenGL-on-Vulkan implementation to in turn run it atop the MoltenVK library for translating the Vulkan calls to Apple’s Metal graphics/compute API. That work fell into disrepair but now the fixed up code for allowing Zink to build on Apple’s operating system has been merged into Mesa 22.0…

Source: Phoronix – Mesa 22.0 Zink Lands macOS Build Fix For OpenGL On Vulkan Via MoltenVK On Metal