Hi!
This week Flic (flic.io) launched their Mac app. Flic are Bluetooth buttons with single, double and triple press functionality. Using the KM web server you can use the webrequest hooks in the Flic Mac app to trigger actions. Pretty neat to have a dedicated button for something on your Mac 
Product Hunt announcement: https://www.producthunt.com/posts/flic-for-mac#comment-450892
Flic: http://www.flic.io