internal/

Package bootscript generates the on_boot.d script for UniFi Dream devices.

Package dns provides a minimal Route53 REST client (no AWS SDK).

Package server implements the dddns HTTP listener that translates dyndns-style requests from UniFi's inadyn into Route53 updates.

Package updater implements the core DNS update flow shared by the cron path (cmd/update.go) and the serve handler (internal/server).

Package verify produces a DNS-propagation snapshot for the `dddns verify` command.

Package wanip resolves the router's current public IPv4 address by reading the WAN interface directly from the OS, avoiding the round trip to checkip.amazonaws.com.