[slownews45]

One thing I don't like about the two langauge approach - deployment story get's more complicated it seems?

In my case I went to deploy on a musl system and things with the two language just were a pain to get up and running.

Conversely, everything that was native python ran fine in a musl based python container.

Your native python code just moves also nicely between windows / linux / etc

[hobofan]

Development story is as complicated as the tooling makes it to be. With good tooling that e.g. minimizes the amount of glue code and/or makes integration of building the native parts easy, the development story doesn't have to much more complicated.