Zap is layer 2 bitcoin payment on the lightning network. You need a lightning address, its like email for bitcoin.
Try the primal client for nostr
Or sign up for strike, bitcoin exchange and lightning wallet to acquire one.
Discussion
Like that? Do I also need the NIP-05 or for what is ghat?
NIP-05 enables a Nostr user to map their public key to a DNS-based internet identifier. The verification mechanism is similar to how Google requires you to verify your ownership of a domain using a DNS record.
The major benefit of verification is that it allows a Nostr user to be identified by a human-readable name, instead of a long, hard-to-remember public key. This enables verified Nostr users to easily share their identity with others.
optional but it does give more cred to your profile as it verifies you