nautechsystems/nautilus_trader ? reverse-engineered prompt

I want to build a high-performance trading platform. I'd like to write my trading strategies and logic in Python because it's what I'm comfortable with, but the core engine doing all the heavy lifting should be extremely fast and reliable, maybe built in Rust.

The most important feature is that I can research and backtest my trading ideas against historical data, and then deploy the exact same strategy to a live market without changing the code. This is crucial for avoiding mistakes. The system should be able to connect to various exchanges for different assets like crypto, stocks, and forex. It should support advanced order types and be performant enough that I could even use it to train machine learning models for trading later on. Please ensure it is portable and can run on Linux, macOS, and Windows.