A GDG DevFest, is an annual event where local GDGs communities make much activities to share new Google development technique and practices to the audiences. This Year, GDG Maroua & GDG Ndere, which are in the North part of Cameroon (Far North and Adamawa region respectively), merged and organize a GDG North DevFest to join all local competences to make a beautiful event for all developers regions. It will an opportunity for the Google Developer Group Cameroon to impacts other communities, local developers such as start-up and government developers to show the possibilities and the facilities to make suitable apps with the new Google Dev Technologies. This year the devfest will have a special novelty with a day entirely dedicated to a hackathon during the DevFest, where developers build an app in a day using Firebase and Cloud Functions!