> It appears to be built into macOS [1]? It is, but it's badly implemented and buggy. But the real problem is that there is no posix like specification for fil

> It appears to be built into macOS [1]? It is, but it's badly implemented and buggy. But the real problem is that there is no posix like specification for file system events so every platform does it differently. Even if every platform implementation were perfect and bug free, it is a huge pain to write wrappers for each one.