Hassio_audio container function

Hello guys!
I’m try to create door bell using my raspberry with home assistant, i want playing local audio file on raspberry audio jack and i find some topics that advised me using MPD, mopidy, and others.
Release this scenario is not problem for me, but after upgrade to 0.106.5 version, i find hassio_audio container which occupy alsa audio port in os.
My question: what function hassio_audio container have? I can use this for playing local audio files on raspberry audio output? And if i can, how?
May be i must waiting next version.

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Curious too now