Hello, First of all, thank you for the answer and this great framework. Actually, I read this page and looked at it again. But it does not fit my problem. In this example or examples in the doc, runners are defined before the service is created but I want to create a new runner depending on the request in the defined service. For example, I have 5 models in my ./models folder, I made a service with 2 of the models and started the server. I want to load another model from my other 3 models if any related request comes. Thanks again for support 🙂