Great guide, thank you. Been using Sparrow + Coldcard on my own node and was primarily curious about Single Sig vs. Multi Sig after watching an old Andreas Antonopoulos clip where he was saying Multi Sig is risky for non-technical users because if even1 xpub is lost then the wallet is gone forever even with the private keys. I believe that's what he was trying to say at least, I may have misunderstood.