Watch file instead of polling

[xmedeko]

What about to use file watcher chokidar instead of poll interval?

[jsumners]

That would significantly increase the dependency tree. In fact, at this point, the dependency tree could be zero with a PR to remove fast-json-parse.

The readme for that chokidar module says that it will use a native extension for macOS, but continue to use fs.watchFile on other platforms. I'm a hard "no" on adding a native extension. I could probably be convinced to add a watcher option if it is based solely on the core fs.watch API.