Connect PC to WiiM for movies & games

[jdannunzio]

I am thinking on pulling the trigger on a WiiM. Apart from streaming, I am looking for a device that can be paired to a desktop PC and to an amplifier+speakers setup to work as audio for videogames or movies (VLC). PC's motherboard has S/PDIF and other audio output.
If you have a similar setup, how do you connect WiiM to computer to work as audio system?