It doesn’t. They’re referring to natural wells that are dug for each home outside of cities

Here’s the link if anyone else wanted more than a picture apple.com/apple-creator-studio

I tried Tidal but they have a glitch on their app where downloaded songs get stuck and playlists stop downloading. They’ve had a bug open about it for at least three years last I checked. It may sound niche, but I’m often traveling and use offline music regularly