Basic Quart server in backend directory

backend/app.py

@@ -0,0 +1,10 @@
+from quart import Quart
+
+app = Quart(__name__)
+
+@app.route('/')
+async def hello():
+    return "Hello, Quart!"
+
+if __name__ == "__main__":
+    app.run(debug=True)