Working with git
Learning
git is a major software source control tool. It started in open source and has expanded into the commercial world as well. Some learning resources:
For specific problems it may be best to use an engine to search for the solution.
Starting
A version of git (downrev) is installed with XCode command line tools. git will have the most current versions available.
A repo can be made in any folder by the command git init. This creates hidden only-local files for the repository of that folder. (see)