I had to make an offline voice assistant using the greek language,for my university thesis and with rhasspy and node-red that was possible.
Connecting two sonoff devices with tasmota via MQTT into a mosquitto broker running in the raspberry pi that is equipped with a respeaker2mic-HAT and 18mm jst magnetic speaker.The flow was nothing special but a voice assistant working with the greek language is not available in the market,so it was something