Are we supposed to use both Z-Wave JS and Z-Wave JS UI?

[freshcoast]

Switching Z-Wave JS Addons with Minimal Downtime! Z-Wave JS (Official) to Z-Wave JS UI (Community)

Introduction This guide describes how to switch from the Z-Wave JS official add-on to the Z-Wave JS UI HA Community add-on, without losing any downtime caused by the re-interviewing of nodes. In this guide, Z-Wave JS UI will henceforth be abbreviated as ZUI. Who is this guide for? This guide is for HAOS add-on users who have already installed the official Z-Wave JS add-on and the companion Z-Wave integration, and desire extra functionality that isn’t provided by HA, such as: Adding and remov…

And see this comment if you want to copy your node names and locations into ZUI:

Switching Z-Wave JS Addons with Minimal Downtime! Z-Wave JS (Official) to Z-Wave JS UI (Community)

Here’s a procedure to copy names from HA into ZUI: At some point I’ll add it to the guide, but you would save the json file after step 1 (before disabling the integration) and import it after step 7 (ZUI is setup).