Codeigniter and phpstorm and github

Wow! Not that easy! I was developing on localhost and that worked well. But now with the stuff needing to be up on the live internet, I am kind of stuck with my remote debug. That's OK.
But I am concerned about the github repo. It seems that I have two local repos called master-new, and main. On origin I have three repos: master, master-new, and main. What these are all for? I have no idea.

What I really need is to be able to populate two different domains; regular and staging.

proof that an old dog can learn new tricks