Possible to have a Mac appear as an AirPlay speaker?

Hi all 🙂

This is a slightly odd request, but I'm wondering if there's a piece of software that will enable a Mac to appear as an AirPlay speaker so I can stream music to it from my iPhone?

I have numerous AirPlay ceiling speaker systems around my house, and sometimes I'd like to stream the same music to a few of these as well as to my own computer which is connected to a decent sound system ... but I can't find a way to do this.

I've found bits of software that will enable me to mirror my phone's screen to the computer, but this is different to having the Mac appear as an AirPlay speaker.

Many thanks for your help!

David