RasPi Zero with reSpeaker 2-mic HAT seems a fairly popular option for a satellite, so I’m trying it myself.
Audio processing and AI is compute-intensive, and lets face it - the RasPi Zero isn’t the fastest processor. So it makes sense to minimise what is running on the zero.
- This machine will be dedicated to Rhasspy satellite only.
- only Audio Recording, Audio playing and Wake word detection should run on the zero. Everything else is off-loaded to the base station (where training is shared among all the satellites)
- use Raspberry Pi OS lite, to eliminate xwindows and accessories
But is there any point to Docker on a dedicated machine ???