Submodules

Checkout Repository As Submodule

You have a URL to a Git repository that you want to add as a submodule:

git submodule add https://url/to/the/repo.git

Remove Submodule

Apparently this was a recent addition to Git (2022). Why this was so hard to do in the past is beyond me, but I guess that's Git, isn't it.

git rm path/to/submodule

Source: Stack Overflow

Recursively Checking Out Submodules

Easiest way to checkout submodules once you've already cloned the repository:

git submodule update --init --recursive

Source: Stack Overflow