If check and fallback in Kirby Meta plugin

Duh. Of course. So i got rid of the check for the home page and amended it to this, and its working now. Thanks all.

'image' => function($page) {
   $image = $page->shareimage()->toFile();
   if($image) {
     return $image->focusCrop(1200, 630)->url();
   } else {
     $image = site()->shareimage()->toFile();
     if($image) {
        return $image->url();
     } else {
        $image = new Asset('assets/images/fallback.png');
        return $image->url();
     }
   }
},