I suggest you create a watchdog loop.
1) Start watchdog, with command instructiosn how to restart Node
2) Watchdog monitors your src/ folder and will restart Node when changes detected (you save a file)
There are different watchdog applications and libraries out there, but this is known to work across platforms:
http://pypi.python.org/pypi/watchdog/
At least CoffeeScript compiler can do monitoring internally, so you don't need any kind of third party solution for restarting it automatically. But don't know about barebone Node :(