Didn’t spend much time into it recently. 
I stopped because I have to dig into esp-idf framework mich deeper and still need to figure out how to run micro wake word on board and all microphones. Background noice makes it almost impossible to have good detection, even after trying 7 different microphones…
So most time is spent into rebuilding my house, change electric to make every switch smart and working with nWave senors and no voice to control everything.