Can I start with backend development?

The best way to start working on a back end tech stack is to have everything together on a single server – the code of your application, the reverse proxy servers, the database, etc. Then as you become more proficient in each thing, you can decouple it from the existing business logic.

Specific Python prerequisites and set up

Python is a full-stack language. It is used in backend development while its frameworks are used in frontend development. A Python program can be written in MAC OS and the same program can run in Linux, therefore Python is also a cross-stage languague.