inception mode.. friends and family can create THEIR own sub wallets for people they know, forever on and on. just kidding. but, itd be nice to have an option for them to make a read only receive nwc string in their sub wallet, not just one unrestricted read/write.

It currently doesn't support the Phoenixd backend. I would use it if it had that support.

subaccount specific LNURL e.g. {subaccountname}_{mainURL}

What happens to subaccounts when all LN channels are closed? Does it maintain balances and history once it is reconnected to the lightning network?