Maybe `ArrowLeft`/`ArrowRight` or `j`/`k` to flip through all of card pairs? Or just allow us to scroll through all the pairs. In either case, both old and new should be visible.
This happened to me a couple of times when I tried to sign up on their website: instantly banned before I could even enter the onboarding flow.
I then had more success signing up with the mobile app, despite using the same phone number; I guess they don't trust their website for account creation.
A framework designed to blur the line between code running on the client and code running on the server — forgot the distinction between code running on the client and code running on the server. I don't know what they expected.
(The same confusion comes up regularly whenever you touch Next.js apps.)