Hey there,
I'm new here but I really could need some help... I'm trying and searching around for a long time now but couldn't get there. I want to create an HLS audio-only stream (without any video files) but multiple audio selectors to switch between languages. Is it possible and how?
Sure. Just create a Multivariant Playlist with one or more tiers (EXT-X-STREAM-INF) whose playlists contain audio-only segments. Use EXT-X-MEDIA tags to create a group of renditions, one per language. There are various WWDC talks that cover this, such as https://developer.apple.com/videos/play/wwdc2020/10225/
