Learnlog

You can not use .gitconfig file in a git repository by default, but you can link to it so the git config will be versioned.

t is not possible to automatically include your custom configuration file through git alone, because it creates a security vulnerability.

git config --local include.path ../.gitconfig

Take a close look at the output, though: the little + symbol in front of that SHA-1 hash tells us that the submodule is at a different revision than is currently stored in the parent repository

A git submodule is a record within a host git repository that points to a specific commit in another external repository.

The git submodule add is used to add a new submodule to an existing repository.