Well, the good thing is you don’t need to use ZUI if you don’t want. You can keep it installed for the zwave-js-server and just stick to the HA UI. Besides the NVM migration it’s identical. You can pretend ZUI doesn’t exist.
That said, if you really want to switch you can try going in the reverse of this guide: Switching Z-Wave JS Addons with Minimal Downtime! Z-Wave JS (Official) to Z-Wave JS UI (Community)
Basically:
- Disable the Z-Wave integration
- Download cache files from ZUI Store (Backup will do it), and copy your security keys
- Stop ZUI add-on
- Install the Z-Wave JS add-on manually
- You might need to start the add-on, then stop it, to create the addon data directory
- Copy the cache files to the addon cache directory
- Start the add-on and configure it with USB path and security keys
- Re-add the Z-Wave integration but enable the Supervisor add-on checkbox