Need to deploy my Fly application to a .com domain

Anyone know how to deploy my application ( to a .com domain. I’d like to deploy it to my .com domain that is currently parked on Namecheap. A bit of a noobie question but appreciate any assistance!

I did it with godaddy, it looks like step 3 here would do the trick. The ipv4 should be the A record and the ipv6 should be the AAAA record