Pulls set details from LEGO site, works out if the status has changed, and sends a push notification via Pushover if it has.
Currently the set number is hardcoded in index.js, and it only supports tracking one set, but would be easy enough to expand.
Supports an optional --send-update flag to force sending the current status (e.g. if you want to be notified once a day regardless to make sure your script is still working :) )
Run it on a schedule with cron on your system.