I did the whole xcaddy routine with the plugin and I moved it into /usr/bin and it works, displays my site, but I’m not blocking anything. I figure someone might spot my blunder in my config, so here it is.

jellyfin.nunya.biz {
    reverse_proxy mydude:8096
    @mygeofilter {
        maxmind_geolocation {
        db_path "/mnt/geoip/GeoLite2-Country_20250502/GeoLite2-Country.mmdb
        allow_countries US
        }
    } 
}