Is there a way to mimic or use LoFiATC on HA?

There is this awesome site lofiatc.com that overlays live ATC audio over LoFi music. (Don’t knock it until you’ve listened to it)

I’d like to either use their stream (actually 2 separate streams that only start on button push) on HA or mimic the behavior (thinking Spotify lofi playlist with ATC stream playing simultaneously)

Does anyone know if it’s either possible to either:

Mimic a browser (and click on a button) and play the resulting streams on a media player

Or

Play 2 simultaneous streams (live ATC and Spotify)?