Synced Wi-Fi audio output

I’m recently using a Bluetooth headphone paired with Vero 4k to watch movies. But there is a problem: Only one person can watch the movie at a time.

So When I saw Snapcast project and successfully tried it with MPD on my PC and got the music on my phone’s handsfree, I thought about sending audio output of Kodi to a Snapcast server, so many people can hear the movie’s audio with their phones.

First of all, I wanted to ask it this a sound theory?

If it is, how can I implement that? And if it’s not, what is the better way to achieve synced audio?

Not something that’s likely to have been tried before unfortunately.