learn and teach Nvidia Modulus (FourCastNet) code to me

I want someone to learn and teach me the Nvidia Modulus (FourCastNet) part, they way that how can I modify it, put my own input data inside code and get the results like described inside the modulus.
for more information you can visit this website for Nvidia: https://docs.nvidia.com/deeplearning/modulus/user_guide/neural_operators/fourcastnet.html