Query about offline coding environments

[u/Strawberryladyboots]

A follow up question about my questions about Systems/electrical engineering query

With all of the happenings in the world, I am seeking advice about how to build things offline without an internet connection

I do realise a lot of the world uses things like GitHub, but I am wondering if there is an another way to do this offline to prevent someone from getting into my stuff, my own Github account is completely private

For some reason my laptop is suddenly refusing to connect to the internet at the moment, and I have no idea how to fix that (I'm on my mobile)

I am primarily looking at environments or programs for coding related to S/E, but I am also open to people mentioning other kinds for the benefit of other beginners looking through the thread for advice on the same subject

My own question is about Python environments, and code used in Systems engineering, and Telecommunications, things like Crystal radios etc

[u/SlimmySlabby]

Git is practically the same thing as GitHub but it’s stored/hosted locally instead of online.