The domain troubleshooting guide can help with most custom domain configuration issues. You might be able to use that guide to solve it before a human is available to help you. Then you can come back here and share the answer for bonus points.
You can also use v0 to narrow down the possibilities.
I think I got it but I will have to see in 48 hours. The first time, I added Vercel’s IP address and CNAME to the “advanced DNS” section of namecheap but that didn’t work obviously.
It might be more intuitive for new people on Vercel if there were screenshots of the 4-5 major domain registers UI with arrows to the settings. In a domain FAQ format maybe. I wasn’t sure what I needed to give namecheap as far as nameservers until I read through the community forum.
Just for reference (for the next person) see photo for namecheap’s nameservers format. Hopefully It will work this time!