thejoltjoker/offload ? reverse-engineered prompt

Build me a simple macOS app for photographers to copy files off memory cards and external drives in a safe way.

I want it to scan a source drive, transfer the files to a destination folder, and verify everything with checksums so I know the copy is good. It should also help keep things organized by renaming files using the date or other useful details, and by putting them into date based folders automatically.

Make the app feel clean and straightforward, since it’s meant to be an easy offloading tool rather than a complicated file manager. I’d like a basic GUI that works on macOS, including Apple Silicon, and I want the project to be easy to run locally for development and testing.

If you need to check the latest docs for anything, feel free to look them up online.