Nftables geoip

Hi,

I read this article and was wondering, how i can implement this in Openwrt.
https://wiki.nftables.org/wiki-nftables/index.php/GeoIP_matching

It says "you can only use the country definitions inside your ruleset file and not inside an interactive nft shell".

I was wondering, where i can create these rules in Luci or if i have to set them in a config file directly.

Thanks for your help,

Florian