AdGuard Home configuration. Refer to https://github.com/AdguardTeam/AdGuardHome/wiki/Configuration#configuration-file for details on supported values.
On start and if mutableSettings is
true, these options are merged into the configuration file on start, taking precedence over configuration changes made on the web interface. Set this to null (default) for a non-declarative configuration without any Nix-supplied values. Declarative configurations are supplied with a default schema_version, and http.address.