Hello, I am currently developing a PIR server using the pir-server-example repository. We are anticipating a total of 10 million URLs for our dataset. In this context, what would be the optimal shard size (number of records per shard) to balance computational latency and communication overhead? Any advice or best practices for handling a dataset of this scale would be greatly appreciated. Thank you.

Hello, I am developing a URL traffic filtering system. I’ve set up a PIR server following this guide: https://developer.apple.com/documentation/networkextension/setting-up-a-pir-server-for-url-filtering According to this WWDC25 video, it appears that I need to use an OHTTP Gateway: https://developer.apple.com/videos/play/wwdc2025/234/ So, I developed an OHTTP Gateway and verified it using a test client. Following that, I built the app and installed it on a test iPhone based on this sample: https://developer.apple.com/documentation/networkextension/filtering-traffic-by-url However, I cannot find any settings related to the OHTTP URL within this sample. How should I proceed with the OHTTP configuration in this case? Thank you.