Michelle, select one of your Nostr accounts and stick with it. Log in on Damus with the private key of the account you decided to use.

Go to Alby or Zeus and create a LNURL address (let me know if you have problems doing it).

Copy the LNURL address.

Go on your Damus profile, click edit, go down to “Bitcoin lighting tips” and copy the LNURL address.

Done! :)