Zwavejs zwavejs2mqtt and mqtt integration

Could someone explain to me how to use this?

I have ZwaveJS2MQTT running in a docker container. This is working well, both in Domoticz and in Home Assistant.
In Home Assistant, Do I have to activate ZwaveJS integration too? Or could I reach the same goal with mqtt? The problem is: I see all Zwave devices twice. One from Mqtt and one from ZwaveJs.

You generally use either mqtt or the zwavejs integration with zwavejs2mqtt. If you use both you will indeed get duplicates if all devicez.

Unless you need mqtt outside home assistant, I’d recommend disabling mqtt in the zwavejs2mqtt control panel, and just use the zwavejs integration in Home Assistant. The integration uses websockets, discovery works better, and it’s quicker.

I posted recently about this here.

Also see this post for additional context and information

Hi Tim,
That is very helpfull! I did not read this before.
I still need Zwavejs2mqtt and Mqtt because of Domoticz.I’m in transition between Domo/HA.
But as soon as I have created all my DzVents scripts in HA, I will disable MQTT in ZwaveJS2MQTT.
Thanks a lot.