diff --git a/Dockerfile b/Dockerfile
index b183fa3..3df11a7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -43,8 +43,7 @@ COPY --from=ghcr.io/astral-sh/uv:0.5.18 /uv /uvx /bin/
 
 WORKDIR $APP_HOME
 
-RUN uv sync --frozen --dev && \
-    rm -rf $APP_HOME
+RUN uv sync --frozen --dev
 
 EXPOSE 8000
 
diff --git a/compose.yml b/compose.yml
new file mode 100644
index 0000000..ffdc286
--- /dev/null
+++ b/compose.yml
@@ -0,0 +1,33 @@
+services:
+  teufa:
+    build:
+      context: .
+    develop:
+      watch:
+        - action: sync+restart
+          path: .
+          target: /opt/app
+          ignore:
+            - .venv/
+        - action: rebuild
+          path: ./pyproject.toml
+    ports:
+      - "8000:8000"
+    environment:
+      DATABASE_URL: postgresql+psycopg://postgres:changeme@db:5432/postgres
+    depends_on:
+      - db
+  db:
+    image: postgres:16
+    environment:
+      POSTGRES_PASSWORD: changeme
+      POSTGRES_DB: teufa
+    ports:
+      - "5432:5432"
+  migrate:
+    image: teufa:latest
+    depends_on:
+      - db
+    environment:
+      DATABASE_URL: postgresql+psycopg://postgres:changeme@db:5432/postgres
+    command: alembic upgrade head
diff --git a/tests/test_flight.py b/tests/test_flight.py
index f3bfa45..927eae1 100644
--- a/tests/test_flight.py
+++ b/tests/test_flight.py
@@ -30,7 +30,7 @@ def test_create_flight(client: FlaskClient):
     )
 
     assert response.status_code == 201
-    assert json.loads(response.json) == {
+    assert response.json == {
         "flight": {
             "id": 1,
             "departure_icao": "KDEN",
@@ -63,7 +63,7 @@ def test_get_flight(client: FlaskClient):
     response = client.get("/api/v1/flights/1")
 
     assert response.status_code == 200
-    assert json.loads(response.json) == {
+    assert response.json == {
         "flight": {
             "id": 1,
             "departure_icao": "KDEN",
@@ -77,7 +77,7 @@ def test_get_flight_not_found(client: FlaskClient):
     response = client.get("/api/v1/flights/1")
 
     assert response.status_code == 404
-    assert json.loads(response.json) == {"message": "Flight not found"}
+    assert response.json == {"message": "Flight not found"}
 
 
 def test_update_flight(client: FlaskClient):
@@ -112,7 +112,7 @@ def test_update_flight(client: FlaskClient):
     )
 
     assert response.status_code == 200
-    assert json.loads(response.json) == {
+    assert response.json == {
         "flight": {
             "id": 1,
             "departure_icao": "KJFK",
@@ -134,7 +134,7 @@ def test_update_flight_not_found(client: FlaskClient):
     )
 
     assert response.status_code == 404
-    assert json.loads(response.json) == {"message": "Flight not found"}
+    assert response.json == {"message": "Flight not found"}
 
 
 def test_delete_flight(client: FlaskClient):
@@ -170,4 +170,4 @@ def test_delete_flight_not_found(client: FlaskClient):
     response = client.delete("/api/v1/flights/1")
 
     assert response.status_code == 404
-    assert json.loads(response.json) == {"message": "Flight not found"}
+    assert response.json == {"message": "Flight not found"}
diff --git a/teufa/v1_api/flights.py b/teufa/v1_api/flights.py
index 5b5a470..9f3d279 100644
--- a/teufa/v1_api/flights.py
+++ b/teufa/v1_api/flights.py
@@ -33,7 +33,7 @@ class FlightCollectionResource(Resource):
             }
         )
 
-        return res.model_dump_json(), 201
+        return res.model_dump(), 201
 
 
 class FlightResource(Resource):
@@ -41,7 +41,7 @@ class FlightResource(Resource):
         flight = db.session.get(dbm.Flight, flight_id)
 
         if not flight:
-            return dao.Error(message="Flight not found").model_dump_json(), 404
+            return dao.Error(message="Flight not found").model_dump(), 404
 
         res = dao.GetFlightResponse(
             **{
@@ -54,13 +54,13 @@ class FlightResource(Resource):
             }
         )
 
-        return res.model_dump_json()
+        return res.model_dump()
 
     def put(self, flight_id):
         flight = db.session.get(dbm.Flight, flight_id)
 
         if not flight:
-            return dao.Error(message="Flight not found").model_dump_json(), 404
+            return dao.Error(message="Flight not found").model_dump(), 404
 
         data = request.get_json()
 
@@ -88,13 +88,13 @@ class FlightResource(Resource):
             }
         )
 
-        return res.model_dump_json()
+        return res.model_dump()
 
     def delete(self, flight_id):
         flight = db.session.get(dbm.Flight, flight_id)
 
         if not flight:
-            return dao.Error(message="Flight not found").model_dump_json(), 404
+            return dao.Error(message="Flight not found").model_dump(), 404
 
         db.session.delete(flight)
         db.session.commit()