does not link, we are close..

libs/mare/mare.cpp

@@ -38,10 +38,13 @@ namespace Render {
         free(_screenBufferForeground);
     }
 
-    template <class T>
-    void Mare::addDrawable(T){
+    template <class T, class ... Args>
+    T* Mare::addDrawable(Args&&... args){
         static size_t lastDrawableIndex(0);
-        auto newD = std::make_shared<T>(lastDrawableIndex++, )
+        static_assert(std::is_base_of_v<Drawable, T>, "Scene::createDrawable<T>() error, type T is not inherited from Drawable.");
+        auto newD = std::make_shared<T>(lastDrawableIndex++, nullptr, this, std::forward<Args>(args)...);
+        _drawables.push_back(newD);
+        return newD.get();
     }
 
 
@@ -54,6 +57,7 @@ namespace Render {
                 printf("Drawable is expired");
             }
         }
+        EPD_2IN9_V2_Display_Partial(_screenBufferBackground);
     }
 
     void Mare::setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value){