code: private function isValidHomeDirectory(string $path): bool
      {
          $valid = false;
          if ('~/' === substr($path, 0, 2)) {
              $valid = $this->isValidFullPath(
                  $this->expandHomeDirectory($path)
              );
          }
  
          return $valid;
      }
docs: Returns true if the path is relative to the users home directory.
  
  The home directory receives special attention due to the fact that chdir (and pals) don't expand '~' to the users
  home directory - this is a function of the shell on UNIX systems so we must replicate the behaviour here.