Defer the loading of images to the production/live server if file not exist - NGINX

example-nginx.conf

server {

    # base nginx conf

    location ~ ^/wp-content/uploads/(.*) {
      try_files $uri @live_uploads;
    }

    location @live_uploads {
        rewrite ^/wp-content/uploads/(.*)$ https://livewebsite.com/wp-content/uploads/$1 permanent;
    }


}