FB52Z6Q67WXO3EZKP7JUBLGJ5GGD4YPKVSDXSTPBPQL4L2PLYKFQC
- `depth` is a recursion depth of sub-directories to watch. Defaults to 0, meaning watching only the parent directory itself.
- `depth` is a recursion depth of sub-directories to watch. Defaults to 0, meaning watching only the parent directory itself. `nfp` will automatically pick up changes in the directory tree.