Do you have an idea that doesn't fit any of the other challenges? This is the place for you, whether you want to design and develop an app, create a data visualization, hack on an Arduino... or anything else you can think of!
Never be fashionably late for an apocalypse! This application allows you to register your phone number for notification of when global temperatures reach critical level. In addition, the application allows writing a final testimony to any other registered user that is sent once apocalypse comes.
Back-end written in PHP with the Lumen framework. SMS messages handled by Twilio. Temperature detected from Mbed development boards connected to IBM Bluemix IoT platform.