A cron job to push notifications to Slack using Footprints.
Note: this is a code snippet and not a ready-to-go application.
You need to be comfortable with PHP and the Footprints API to make this work.
Example lines for crontab (running every 2 minutes)
*/2 * * * * php ~/crons/fpnotifications.php >> /dev/null
*/2 * * * * php ~/crons/fpnotifications.php >> ~/cronlog.txt