What's the best way to rsync two directories with git repositories?

I have two machines that I use for work. One is the local machine located at my home, and the other is the remote machine located at my office. I have a "development" folder in which I keep all my work. It contains various folders of LaTeX documents, Python projects, etc. Most of these folders are git repositories themselves. I need to be able to switch between the machines and pick up my development work as and when I require it depending upon my physical presence at home or office. What's the best way to do rsync of this "development" folder? I did: rsync -zvaP /media/shihab/development shihab@remote:/media/shihab/OSDisk/development and rsync -zvaP shihab@remote:/media/shihab/OSDisk/development /media/shihab/development but I ended up messing up my file and folder permissions and groups. How do established programmers manage switching between their machines?