Honestly, nothing yet. I’ve only been playing with it for a few weeks. I just use the web interface on my phone to test the voice control. I’ve been looking at the esp32 devices that people have been building, but a lot of them admit that they can’t come anywhere close to the reliability of the microphone array used in the Alexa.
Thanks…now I’m acutely aware of the spit in my mouth and when I swallow it.