Add a sortable/searchable "Customer Country" column to the WooCommerce orders table

I added a "Customer Country" column to the WooCommerce orders table (in admin dashboard), but I can't figure how to make it sortable. Any help? It would be a nice bonus if it could be made also searchable.

add_filter( 'manage_edit-shop_order_columns', function( $columns ) {
    $columns['customer_country'] = 'Customer Country';
    return $columns;
}, 10, 1 );

add_action( 'manage_shop_order_posts_custom_column', function( $column ) {
    global $post;
    if( 'customer_country' === $column ) {
        $order = wc_get_order( $post->ID );
        echo get_user_geo_country( $order->get_customer_ip_address() );
    }
}, 10, 1 );

add_filter( 'manage_edit-shop_order_sortable_columns', function( $columns ) {
    $columns['customer_country'] = 'customer_country';
    return $columns;
}, 10, 1 );

add_action( 'pre_get_posts', function( $query ) {
    if( ! is_admin() ) { return; }
    // ????
}, 10, 1 );

/** Get geolocated country name by IP **/
function get_user_geo_country( $user_ip ) {
    $geo      = new WC_Geolocation();              // Get WC_Geolocation instance object
    $user_geo = $geo->geolocate_ip( $user_ip );    // Get geolocated user data
    $country  = $user_geo['country'];              // Get the country code

    return WC()->countries->countries[ $country ]; // return the country name
}

source https://stackoverflow.com/questions/70136921/add-a-sortable-searchable-customer-country-column-to-the-woocommerce-orders-ta