code: private function findIn(string $path): Finder
      {
          return Finder::create()
              ->ignoreDotFiles(false)
              ->sort(
                  static function (SplFileInfo $a, SplFileInfo $b): int {
                      $countA = substr_count(strtr($a->getRelativePath(), '\\', '/'), '/');
                      $countB = substr_count(strtr($b->getRelativePath(), '\\', '/'), '/');
  
                      return $countA <=> $countB;
                  }
              )
              ->followLinks()
              ->in($path)
          ;
      }
docs: Returns a finder instance to find files in the given path.