MiciMike Home Mini Drop-In Board – ESP32-S3 + XMOS XU316 replacement mainboard for Google Home Mini (Gen 1)

FYI, you can find out more about iMike78's two ongoing projects in their respecitve GitHub repo:

and

Note that those repos each also have their own discussions section for deeper questions, see:

as well as

For reference, that other forum thread you refer to is my "open-letter" request to the community:

That is a broader discussion about PCB alternatives for all Google Nest line of of speakers:

Join in all of those for discussions about different replacemnent PCB boards for Google devices!