Slightly off-topic but FYI, a community member has begun a new open-source hardware project to design a custom drop-in replacement PCB for converting existing Google Nest Mini + Google Home Mini speakers and is now asking for help from fellow electrical engineer hobbiests, so check this out post to that other thread if interest → Any news on alternative to "Onju Voice" PCB repacement design for Google Nest/Home Mini speakers with added XMOS chip to match official Home Assistant Voice Preview Edition reference hardware? - #3 by iMike78