> Would it be enough to create the Carthage folder in the postclone script? I would prefer not to check this directory in.
Yes. If you download the Carthage folder in the post-clone script and if the Cartfile and Cartfile.resolved are not checked into your repo.
You can also ping us on Intercom (the little blue button at the bottom right screen of the buddybuild dashboard) and we could disable all Carthage commands for your app.