https://npr-ice.streamguys1.com/live.mp3?ck=1574635366126
https://developer.apple.com/documentation/avfoundation/avplayer
https://stackoverflow.com/questions/34563329/how-to-play-mp3-audio-from-url-in-ios-swift/34563570
https://www.cocoawithlove.com/2008/09/streaming-and-playing-live-mp3-stream.html (very old)
https://developer.apple.com/documentation/avfoundation/avaudioplayer
https://developer.apple.com/documentation/mediaplayer?language=objc
https://developer.apple.com/documentation/foundation/urlsession