Yes. What's cool is in Rust you have direct access to polars, so you can do all the low level munging and computations (and/or read/write the data to/from arrow

Yes. What's cool is in Rust you have direct access to polars, so you can do all the low level munging and computations (and/or read/write the data to/from arrow directly from rust if need be) in Rust and return dataframes directly to Python. The front end is still Python, of course, but pyo3 makes it pretty trivial.