To be able to collaborate on any Git project, you need to know how to manage your remote repositories.
Remote repositories are versions of your project that are hosted on the Internet or network somewhere.
You can have several of them, each of which generally is either read-only or read/write for you.
Remote repositories can be on your local machine.
It is entirely possible that you can be working with a “remote” repository that is, in fact, on the same host you are.
The word “remote” does not necessarily imply that the repository is somewhere else on the network or Internet, only that it is elsewhere. Working with such a remote repository would still involve all the standard pushing, pulling and fetching operations as with any other remote.
Collaborating with others involves managing these remote repositories and pushing and pulling data to and from them when you need to share work.
Managing remote repositories includes knowing how to add remote repositories, remove remotes that are no longer valid, manage various remote branches and define them as being tracked or not, and more.