Audirvāna Origin & Flacbox on iOS

I will soon move from a Windows-based music system relying on MediaMonkey to a macOS-based one probably relying on Audirvāna Origin. Besides pushing music into a Marantz HD-AMP1 via USB (my primary listening configuration), I will also want to play music over DLNA via Wi-Fi on an iOS device running the Flacbox app (my secondary listening configuration - nobody hears anything except me as I then use in-ear plugs). Has anyone got Flacbox and Audirvāna Origin working smoothly together like this ?

Any tips, tricks or suggestions regarding what I’d like to do ?