Installing Razberry Zwave Help

Hope I am in an ok category for my post.

I have a raspberry pi 4 running the supervisor Home Assistant. I have the Razberry zwave daughter board ready to go. Just need a couple questions answered so I dont screw up my current setup.

Is it just a power down, and plug in the new zwave board and restart the pi 4? Nothing else and just go into home assistant and try to add the integration?

Do I need to install the z-way software at all, if using home assistant? Anyone with knowledge of the razberry z wave board and home assistant please give me a hand if you could.