Go to https://nwc.getalby.com and sign into your account

Select New Connection and give it a name

Set a budget so you don’t get rugged

Copy the string, and go to https://zapplepay.com

Enter your npub, and select 🤙 as the trigger emoji (only emoji available on Damus)

Paste the string and add a + after the word nostr

That’s it! You can zap on Damus again