grr... that was from my phone and autocorrect changed it; too late to edit now.
Tried this with an android client and experienced substantial latency despite working just fine between 2 computers in the same lan.
Mpd seemed to work better.
That's super easy already. You can make the phone act as a USB sound card, or you can use PulseAudio's network transparency (see https://puri.sm/posts/speak-to-me/), or you can broadcast an RTP stream, or you can use Bluetooth audio...