You can configure git for specifically for each .git directory but also can use a global setting. Here, I show how to set the global settings.
# Required
# -----------
# set your name
git config --global user.name "Name Here"
# set your email
git config --global user.email "[email protected]"
# Recommended
# -----------
# set your main branch name
git config --global init.defaultbranch "main"
# set the default code editory to vscode (or anything else)
git config --global code.editory code --wait