diff --git a/gns3server/db/models/llm_model_configs.py b/gns3server/db/models/llm_model_configs.py
index 778d16bbc..d582bf754 100644
--- a/gns3server/db/models/llm_model_configs.py
+++ b/gns3server/db/models/llm_model_configs.py
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from sqlalchemy import Column, Boolean, ForeignKey, CheckConstraint, Index, Integer, String, text, JSON
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from .base import BaseTable, generate_uuid, GUID
 
@@ -36,7 +36,9 @@ class LLMModelConfig(BaseTable):
     config_id = Column(GUID, primary_key=True, default=generate_uuid)
     name = Column(String(100), nullable=False)  # Configuration name (table-level for indexing)
     model_type = Column(String(50), nullable=False)  # Model type: text, vision, stt, tts, multimodal, etc.
-    config = Column(JSON, nullable=False)  # Config fields: provider, base_url, model, temperature, api_key, etc.
+    config: Mapped[dict] = mapped_column(
+        JSON, nullable=False
+    )  # Config fields: provider, base_url, model, temperature, api_key, etc.
     user_id = Column(GUID, ForeignKey("users.user_id", ondelete="CASCADE"), nullable=True)
     group_id = Column(GUID, ForeignKey("user_groups.user_group_id", ondelete="CASCADE"), nullable=True)
     is_default = Column(Boolean, default=False, nullable=False)
diff --git a/gns3server/db/tasks.py b/gns3server/db/tasks.py
index 8b3395156..a9554c9cc 100644
--- a/gns3server/db/tasks.py
+++ b/gns3server/db/tasks.py
@@ -171,7 +171,7 @@ async def disconnect_from_db(app: FastAPI) -> None:
         log.info(f"Disconnected from database")
 
 
-async def get_computes(app: FastAPI) -> List[dict]:
+async def get_computes(app: FastAPI) -> List[schemas.Compute]:
 
     computes = []
     async with AsyncSession(app.state._db_engine) as db_session:
@@ -201,12 +201,12 @@ async def discover_images_on_filesystem(app: FastAPI) -> None:
                 continue
         for image_type in ("qemu", "ios", "iou"):
             discovered_images = await discover_images(image_type, existing_image_paths)
-            for image in discovered_images:
-                log.info(f"Adding discovered image '{image['path']}' to the database")
+            for image_info in discovered_images:
+                log.info(f"Adding discovered image '{image_info['path']}' to the database")
                 try:
-                    await images_repository.add_image(**image)
+                    await images_repository.add_image(**image_info)
                 except SQLAlchemyError as e:
-                    log.warning(f"Error while adding image '{image['path']}' to the database: {e}")
+                    log.warning(f"Error while adding image '{image_info['path']}' to the database: {e}")
 
     # monitor if images have been manually added
     asyncio.create_task(monitor_images_on_filesystem(app))
@@ -237,7 +237,7 @@ class EventHandler(PatternMatchingEventHandler):
     Watchdog event handler.
     """
 
-    def __init__(self, queue: asyncio.Queue, loop: asyncio.BaseEventLoop, **kwargs):
+    def __init__(self, queue: asyncio.Queue, loop: asyncio.AbstractEventLoop, **kwargs):
 
         self._loop = loop
         self._queue = queue
@@ -274,7 +274,7 @@ class EventIterator(object):
 async def monitor_images_on_filesystem(app: FastAPI):
 
     def watchdog(
-        path: str, queue: asyncio.Queue, loop: asyncio.BaseEventLoop, app: FastAPI, recursive: bool = False
+        path: str, queue: asyncio.Queue, loop: asyncio.AbstractEventLoop, app: FastAPI, recursive: bool = False
     ) -> None:
         """
         Thread to monitor a directory for new images.
@@ -295,7 +295,7 @@ async def monitor_images_on_filesystem(app: FastAPI):
                 loop.call_soon_threadsafe(queue.put_nowait, None)
                 break
 
-    queue = asyncio.Queue()
+    queue: asyncio.Queue = asyncio.Queue()
     loop = asyncio.get_event_loop()
     server_config = Config.instance().settings.Server
     image_dir = os.path.expanduser(server_config.images_path)
@@ -348,7 +348,7 @@ async def get_user_llm_config_full(user_id: str, app: FastAPI) -> Optional[dict]
     from gns3server.utils.encryption import decrypt, is_encrypted
 
     try:
-        user_uuid = UUID(user_id) if isinstance(user_id, str) else user_id
+        user_uuid = UUID(user_id)
 
         async with AsyncSession(app.state._db_engine, expire_on_commit=False) as session:
             repo = LLMModelConfigsRepository(session)