AltCity and UNICEF are collaborating to bring forth the first local acceleration plateform/event on December 15th till 18th. For more details, check the
link. Total disclaimer: the event is focused on brainstormong, marketing, fundng and business concepts in general. So no actual coding will be performed; this doesn't mean though that if you have an app or hardware ready for demonstration that you can't bring it forth (I encourage you to do that actually for demo purposes).
More updates coming later on.
Good luck on getting your hackathon on!!