Hello, A customer has requested the development of a home assistance app to be published on the App Store. The app will connect to a server running locally at the end user's home, for example on a Raspberry Pi. Users would enter the IP address or hostname of their personal server into the app. A strict requirement is that, for data protection reasons, there must not be any proxy server. The app should only communicate directly with the local server (e.g., Raspberry Pi). We are able to solve technical challenges such as DNS, dynamic IP, and port forwarding, router configuration. However, I'm concerned about Apple's requirement that the endpoint – in this case, the Raspberry Pi at the user's home – must not use self-signed SSL certificates. While it may be technically possible to secure the home server with a certificate provider like Let's Encrypt, it is unrealistic to expect a typical user with no technical training to accomplish this setup independently. Is there a recommended solution to this problem, particularly in the context of IoT devices and apps? Any advice or experiences would be deeply appreciated.