Apple seems to be working on adding CUDA support to open-source ML framework MLX, which may mean that code developed using MLX would work with CUDA (Malcolm Owen/AppleInsider)

Malcolm Owen / AppleInsider:
Apple seems to be working on adding CUDA support to open-source ML framework MLX, which may mean that code developed using MLX would work with CUDA  —  Nvidia's hardware is often used to process machine learning applications  —  A project is trying to cut the cost of making machine learning applications …