Changing line 31 from

     $img = $item->link[2]['href'];

to

    $img = $item->xpath('*[@rel="enclosure"]');
    if ( is_array( $img ) && count( $img ) > 0 ) {
        $img = $img[0]['href'];
    }

should embed media in more cases

isn't the $i++ better placed inside the block where the type is checked, so that it's the actual number of toots instead of any activity ? (comment, status change, ...)

Thank you @zeograd ! I updated the page. It works perfect now!