Hello, thank you for the great tool.

I would find it useful to have an option like --mirror or --delete-missing that would remove files from the destination/output folder that no longer exist in the google drive folder. This would be in --folder mode for my purposes.

It might be good to also have a flag to put the tool in read only mode for testing, so it would only report on which files it would delete for easier testing.

I'm using this tool to allow google drive to be an interface for a system that displays screensaver images on computers for a simple digital signage project. And I would like end users to be able to delete an image in a drive folder, and have that deletion be propagated downstream to where my script grabs the images.
Thanks