Try with services.yaml

config/services.yaml

@@ -22,3 +22,13 @@ services:
     
     # add more service definitions when explicit configuration is needed
     # please note that last definitions always *replace* previous ones
+
+when@prod:
+    services:
+        Tvdt\:
+            resource: '../src/'
+            exclude:
+                - '../src/DependencyInjection/'
+                - '../src/Entity/'
+                - '../src/Kernel.php'
+                - '../src/DataFixtures'