Backend: Host IP.

backend/app.py

@@ -616,7 +616,7 @@ def get_project_messages_request(project_id):
 
 
 if __name__ == '__main__':
-    socketio.run(app, host='192.168.1.123')
+    socketio.run(app, host='0.0.0.0')
 
     """ If you deleted the db, run the following to re-initialize it. """
     # db.db.create_all()