[settings] Make it more complicated, why not

src/dx/settings.py

@@ -4,6 +4,15 @@ from configurations import Configuration
 BASE_DIR = Path(__file__).resolve().parent.parent
 
 
+class EnableDebug(Configuration):
+    """
+    Intended as a MIXIN
+    """
+
+    DEBUG = True
+    INSTALLED_APPS = Configuration.INSTALLED_APPS + ["django_debug_toolbar"]
+
+
 class Base(Configuration):
     DEBUG = False
     DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
@@ -22,7 +31,7 @@ class Base(Configuration):
     USE_TZ = True
 
 
-class Dev(Base):
+class Dev(EnableDebug, Base):
     # Dangerous: disable host header validation
     ALLOWED_HOSTS = ["*"]
     DATABASES = {
@@ -31,7 +40,6 @@ class Dev(Base):
             "NAME": "db.sqlite3",
         },
     }
-    DEBUG = True
     INSTALLED_APPS = Base.INSTALLED_APPS + ["django_extensions"]