References

1. Shane Kerr: The Decline And Fall of Bind 10 https://ripe68.ripe.net/presentations/208-The_Decline_and_Fall_of_BIND_10.pdf https://www.isc.org/?faqs=dynamically-loadable-zones
2. The easyDNS implementation of GeoDNS was initially accomplished using custom PowerDNS backends
3. There are ways to get the original qtype to the backend, but for now, if you are not aware of this, you will go insane when you try to code a backend that expects to have visibility into the original qtype.
4. https://blog.powerdns.com/2017/12/15/powerdns-authoritative-lua-records/ and https://doc.powerdns.com/authoritative/lua-records.html
5. https://doc.powerdns.com/md/manpages/zone2sql.1/

6. There isn't actually a defined "BIND-style" file format, rather BIND was the first to use the Master File Format specified in RFC 1035

7. https://doc.powerdns.com/md/authoritative/domainmetadata/
8. Script...