The new sites and the modern experience introduced in SharePoint revolutionized the way users interact with the platform but at the same time it closed the door to all the customizations like JSLink and Custom Actions typically used to extend the default functionalities. The time passed by and Microsoft is bringing most of the extensibility options back to the modern environment with the SharePoint Framework Extensions. In this session, I explained all the new customization methods available, namely Application Customizers, Field Customizers, Command Sets and how they can be used to extend SharePoint functionality. This session was given at the SharePoint Saturday Lisbon 2017 http://www.spsevents.org/city/Lisbon/Lisbon2017/speakers