What is the main github library?

Question

git

I want to upload my Discord bot to Heroku.
As soon as I enter the git init command according to the instructions,
it says that there is no such command. I think you need to install some kind of separate github library. What is this library?

Answer 1

google: install git on [os]

Answer 2

It's not a library, it's an application. git version control system.