aspiring user - rookie questions for streaming on a Expert (non Pro)

[howardrodman]

Just hooked up a Roon nucleus + and am streaming Tidal through Ethernet to my Expert 400. It was literally plug and play.  Shocked and delighted. Not analog but a lot better than a Sonos Connect via TosLink.

If you wouldn't mind a sub-rookie question, and a long-winded one a that—

I have a Devialet Expert 200, so no Core Infinity.  I would stream from my MacBookPro (loaded with many, many ALAC files, some Redbook CD, some higher-res) to the Devialet via AirPlay, but Devialet doesn't "do" AirPlay for my MacOS, which is BigSur, or indeed, for any MacOS post-Catalina.

I have not heard any noise from Devialet that they are working on, or even have a desire to work on, AirPlay for newer MacOSes.  (Please correct me if I'm wrong!)

In the meanwhile, I'm using the digital output of my Sony HAP-Z1ES music server to connect to the Devialet via USB 2.0.

What I'm wondering is: if I were to acquire a Roon Nucleus+, and put my ALAC files on it, would I be able to

• stream from the Nucleus+ to the Devialet via AirPlay?

• or, failing that, connect the Nucleus+ to the Devialet via Ethernet?

• and would that set-up allow me to access hi-res streaming (e.g., Tidal) via the Nucleus+?

Grateful for clarification, even as I'm apologetic for my cluelessness here.

   With thanks for your time and attention,

            Howard.