I have a nextjs app that I have deployed on Railways. My domain that I bought (let's say myapp.com) is on GoDaddy. I want to map the railway service to my root domain, so to myapp.com. When I add a custom domain in the service settings on railway, it shows me to add CNAME record on GoDaddy with a @ as the name. That's not allowed on GoDaddy though. I also tried adding "www.myapp.com" instead on railway, but then it shows a warning Incorrect value "myapp.com". Can somebody help to resolve?