I've added this to many of my apps manually, but I'm still waiting for my PR to be merged so all future apps will have this. Previous existing apps like yours Travel Telly would not benefit from it because it's a template change. You'd need to do some work. Perhaps an easy method would be to clone one of my apps, like ZapTrax perhaps, then inside your app use a prompt like "implement the nip-46 enhancements found in the ZapTrax project directory into my app. The goal is to have one tap remote signer sign in on mobile and QR code sign in on desktop just like ZapTrax."