I recently launched a Slack app to help with channel bloat! Simply installing it would help me out a bunch. I have 2/10 installations required to submit my app to the Slack Marketplace. Thanks for helping me reach that goal.
If a git repo has submodules in it there are two options I use for cloning the repo and cloning the submodules in it. The first method is cloning the submodules during the original clone.
git clone --recursive <url>
The second method is to clone the repo and then clone the submodules.
git clone <url>
cd <repo>
git submodule update --init