Yeah. Muun is great as it’s custodial - I use it too outside of Nostr. But alas for nostr you need an address that never changes.

To receive zaps on your posts?

You need to enter your address in your profile. If you don’t have a wallet already you can download Wallet of Satoshi. Under the “@“ tab it will give you an Alia’s that looks like an email address. You can use that on your profile.

Note