Quick verdict
Open-source ESP32-S3 drop-in mainboard that recycles a Google Nest Mini shell into a fully local HA voice satellite with working LEDs, touch and mute. The ESP32-S3 board runs ESPHome and the HA Assist pipeline locally, severing all Google cloud ties. Just note: Maker/crowdfunding board, not a finished retail product.
Standout: Open-source ESP32-S3 drop-in mainboard that recycles a Google Nest Mini shell into a fully local HA voice satellite with working LEDs, touch and mute.
Last checked: 2026-06-02