Primal for mobile only uses the built-in wallet but you can keep the same Lightning address you use on Damus, and for the web version you can use the Alby extension as your wallet.
Discussion
OK, that makes sense. Do I need to put the Primal address into Damus?
If you set your address to Primal, it will be the same on all clients.
I’m hoping Primal for mobile eventually allows NWC so you can bring your own wallet.