I use Porkbun as my registrar and it has phtn.app for $12.85 / year. That said, namecheap also has it for $14.98 / year (but 16.98 / year for renewal).
Alright, I've purchased it from porkbun. I want to use phtn.app to death like I did with xylight.dev. Perhaps I can change my "brand name" (which currently is Xylo) to Photon?
I'm aware. I'll wait to see if they do anything hostile before transferring. My second choice would be Vercel domains as their prices are always consistent