The packaging thing (and I don't necessarily think "put it in Docker" is a great answer, especially if you're using Python as glue -- why isolate your glue?) is

The packaging thing (and I don't necessarily think "put it in Docker" is a great answer, especially if you're using Python as glue -- why isolate your glue?) is something you kind of solve once and are done with. You probably already want/need a common development environment between people that is close to what you deploy, and adding a fixed Python into the mix with pyenv or whatever is not a big deal. I don't know, I've generally had a good time with. You have to know how to do it and where the foot guns are (I'm still learning), but it's better than being comparatively gimped in development velocity using Go, never mind Rust or C++.