My React-Native app (Expo SDK 54, using expo-av / expo-video) streams MP3 files just fine—until the iPhone screen locks. About 50 seconds later iOS suspends playback. I’m convinced the underlying AVAudioSession isn’t being kept in the right state. Here’s what I need: • Identify the exact spot in my codebase—or the missing configuration—where the audio session should be set so iOS recognises the stream as continuous background audio. • Apply the smallest possible change that works inside the managed Expo workflow; I’d like to avoid ejecting. • Test the fix on a physical iOS device and prove that audio now plays indefinitely with the screen locked (video of the test or Xcode console logs are fine). • Supply the code snippet or pull-request-ready edit plus a brief explanation so I can reproduce it on other branches. No other audio features are required beyond uninterrupted background playback. I’ve already enabled `"audio"` in app.json; everything else is running smoothly. If you’ve solved this exact problem before, I’m looking for a swift, solid patch I can drop straight into the repo.