I'm attempting to create a podspec, but the script/bootstrap part stuck me. Not sure if Cocoapods has capabilities to do that. Would be nice to just strip out all of the submodule parts and include the dependencies.

The script just fetches the project's git submodules which you can see here: https://github.com/octokit/octokit.objc/tree/master/External

I'm not sure all of those can be set up as CocoaPod dependencies though.