serviceStarted() {
			// Re-watch new services if broker has already started and a new service started.
			if (broker.started) {
				debouncedWatchProjectFiles();
			}
		}
**Example:**
```js
hotReload: {
	extraFiles: {
		"./configuration.json": "broker", // reload the broker
		"./common.js": "allServices", // reload all services
		"./database": "v1.posts", // reload a service
		"./database": ["v1.posts", "users"], // reload multiple services
	}
}
```