It's not that hard, we have compute-intensive servers running 24/7 in production and written entirely in Python on our side, using C++ libraries like PyTorch.

It's not that hard, we have compute-intensive servers running 24/7 in production and written entirely in Python on our side, using C++ libraries like PyTorch. You just have to isolate the complicated parts, define sensible interfaces for them, and make sure they are followed with type hints and a good type checker.