Adapting AVCamBuildingACameraApp to a Swift Package and concurrency errors

I have been trying to adapt the code from Building a Camera App and testing moving its functionality into a Swift Package. Within a typical Xcode project, it builds just fine and has no swift concurrency errors.

Putting it into a swift package causes all sorts of errors. I cannot figure out why it is behaving one way within in a typical project vs as a package.

Do packages have extra strictness around concurrency?

Thanks for any clarification