You're going to want to setup a nostr:nprofile1qqst4qyeqenw7zm0fwjsty68h6cnys5jre2xd8ngqpjv5a2j26s78fspzemhxue69uhhyetvv9ujucm0d9hx7uewd9hj75a0pev wallet and link it to your Damus under the Wallet / NWC section. Then edit your Nostr profile and add your newly created Lightning wallet. You can now get zaps to your Coinos wallet.
Bonus: Since Apple is bad, they made Damus remove the ability to send Zaps easily. Using Safari, visit this website and turn on Zaps. This will add little ⚡ icon to all notes.