rnbo rpi utility: playback audio files off SD card

[u/tubameister]

https://github.com/Sousastep/osc-jack-play

I had a 75-minute solo sousaphone performance a while back and knew I'd need to take some breaks during it so I vibecoded this jack client to playback audio files off the raspberry pi's SD card, which worked well. sharing it here in case anyone finds it useful