Good idea, this should be fairly simple to add. Support could be added gitworkshop.dev so that users get an integrated experience with multiple npubs.
In keep on trying to zap you but you don't have a on address configured.
Discussion
I don't know how, yet, setup a wallet.
I'd recommend setting up a cashu wallet (https://cashu.space) or https://getalby.com wallet. I'm using a cashu wallet called MiniBits with Amethyst on Andriod.
once you have generated an 'ln address' you can add it to your profile.
minibits apk or enuts