Currently seems to be taking ages to issue certs
$ fly certs list
Host Name Added Status
tiles.anuinwardbound.com 28 minutes ago Awaiting certificates
storage.anuinwardbound.com 28 minutes ago Awaiting certificates
storage.bigdr.ink 4 weeks ago Ready
tiles.bigdr.ink 4 weeks ago Ready
DNS is working.
$ dig +short _acme-challenge.tiles.anuinwardbound.com txt
"tiles.anuinwardbound.com.****.flydns.net."
dig +short tiles.anuinwardbound.com aaa
137.66.**.**