Limitations with respect to wildcard certs or domains per app?

[Zane_Milakovic]

@ignoramous

• Create a fly-app.
• Update DNS A / AAAA records (you want to generate certs for, say fly.domain.tld and *.fly.domain.tld ) to point to your fly-app’s IPs fly ips list -a <fly-app-name> (fly uses ALPN challenges to procure certs? ).
• run flyctl certs create fly.domain.tld and flyctl certs create *.fly.domain.tld
• Profit?

Sorry for my lack of understanding. I have never done certs before myself. But if my domain was example.com and my app location was example.fly.dev, how would that change the above?