diff --git a/app/db/__init__.py b/app/db/__init__.py
index e69de29..63b83d5 100644
--- a/app/db/__init__.py
+++ b/app/db/__init__.py
@@ -0,0 +1,21 @@
+from collections.abc import Iterator
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import Session, sessionmaker
+
+from app.config import settings
+
+connect_args = (
+    {"check_same_thread": False} if settings.database_url.startswith("sqlite") else {}
+)
+
+engine = create_engine(settings.database_url, connect_args=connect_args)
+SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)
+
+
+def get_db() -> Iterator[Session]:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()