@Buckeye Amps this is my setup exactly.
I use Mac Mini running BubbleUPnP Server exposing OpenHome endpoint configured for Qobuz connection, 192/24 gapless playback.
I have an RPi with Allo DigiOne Sig board (running MoOde, formerly Volumio). It is connected to a DAC over SPIDF (RCA connector), and the DAC sees 192/24 when I am playing Qobuz content at that resolution. I use Linn Kazoo iOS app as my OpenHome control point and am really happy with this setup.
Mac Mini, RPi, and iDevice are all on my home network. Note that I have WiFi disabled on MoOde, use Ethernet instead. (I think WiFi is responsible for some latency on the RPi.)
@Kelims that is bad info, definitely not true that SPIDF/RCA is incapable of 192/24.