UPDATE

location_data/apps.py

@@ -1,3 +1,5 @@
+from functools import cached_property
+
 from django.apps import AppConfig
 
 
@@ -5,3 +7,12 @@ class SoilDataConfig(AppConfig):
     default_auto_field = "django.db.models.BigAutoField"
     name = "location_data"
     verbose_name = "Soil Data (SoilGrids)"
+
+    @cached_property
+    def ndvi_health_service(self):
+        from .ndvi import NdviHealthService
+
+        return NdviHealthService()
+
+    def get_ndvi_health_service(self):
+        return self.ndvi_health_service