How to Control SmartHome by Voice and Habspeaker?

i tried to use habspeaker on openhab 4.3.1 (in docker) with the intention my smarthome to control by voice.
I installed habspeaker add-on
I can reach Habspeaker by http://IP-Address:7070/habspeaker from my Browser and from there i added a name.
I tried to create a habspeaker-thing which unfortunatly never comes online.
I checked the audio sinks but no additional adio-sink was registered.
So i dont know if this is still working? Or is there a better way now available for doing my intention to control openhab by keyword waking and then control something by audio? The way i prefer is doing all locally without any cloudservices or device like alexa. My openhab is running on docker in cellar on a server-device so the devices which should do the control are my Linux-Laptops.