Imagine this.
Your Npub key is the master key by NIP-06(BIP-32).
You login the app with that npub.
You can issue a new P2WPKH or P2TR address from that npub by NIP-06(BIP-32) and of course create a tx and publish to the bitcoin network.
So, what app do you want?
NOTE: Just a usecase story of "Nostr Login". Not required to publish Nostr Event like NIP-47 NWC or NIP-60 Cashu Wallets.
#asknostr
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