Good luck, but using the term open source here is indeed confusing. While your own code is open source, the core of your app is the OpenAI API and without it your app does not work. So the project as a whole does not have the main characteristics of open source apps as generally understood (one can inspect the innards to see how it works, good privacy by default, free). It is sad that so much of the recent AI hype distorted the meaning of the term open source, both due to opaque models that can be downloaded for free and web-apps wrapping the OpenAI API.