I mostly use Roon for audio, my wife likes to use Airplay.
Do you know if it is a possibility to use Airplay to Meridian speakers and control volume via phone or watch like Roon?
In some cases the use of an IR remote is a hassles due to having to use two devices. Really wish M would have incorporated Airplay with the 210.

BTW that's a nice box that you have created. I have a Pi4 for use with rooEXtend and a Nuimo dial.

M2.0>ROON: C15/DSP6K
C2.2>ROON: ALLO DIGIONE/DSP5K+D2500x2
W2.2>ROON: C10/DSP33+D2500
R2.0>ROON R: MiniDSP SHD>SCHIIT Freya+(Forkbeard)>3eAudio A7 Mono>>>Apogee Scintilla

Projects. ROON streamer with serial RS232 volume control