Ah! You are using the tool that connects to your own self cusotdial wallet. This would be if you had a node or Lightning client on your desktop or a Start9 node or a btcpayserver or something.

In your case you already ahve a wallet which nostr:npub1hcwcj72tlyk7thtyc8nq763vwrq5p2avnyeyrrlwxrzuvdl7j3usj4h9rq is operating for you, that is your Lightning address. You simply paste that into your *Profile details* and people can zap you. 

Thats actually not very intuitive for new people. nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s I wonder if there’s reason to change where you put the Lightning address, or maybe add it into the wallet page, and then the zap page too just so it can be easily found and changed no matter where someone may naturally go looking.

Profile -> Edit -> Lightning Address https://v.nostr.build/e1LPtEOzCeHRVzO3.mp4