Why a WatchPaths key instead of a QueueDirectories key?

The QueueDirectories depends on the directory being empty to look for added files. If you open
the directory in the Finder it will make a .DS_Store file and throw your job into a horrible loop. The
WatchPaths is a bit different in that it watches a path for modifications and doesn’t require the
directory to be empty. WatchPaths can also keep an eye on a file.

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