Say I have a CLN lightning node on an Umbrel or Start9. That lightning node first half of the instructions I get and think I did correctly. Totally separated from the lightning node you need an on chain address to sign that message. I guess that concept is where I’m struggling. Why do you need a separate wallet from the CLN node? Maybe just because I don’t understand the “why” I’m having trouble visualizing how to do it.

Thanks!!!