code: func (p Pointer) Resolve(box string, path string) (file.File, error) {
  	plog.Debug(p, "Resolve", "box", box, "path", path, "forward-box", p.ForwardBox, "forward-path", p.ForwardPath)
  	b, err := findBox(p.ForwardBox)
  	if err != nil {
  		return nil, err
  	}
  	f, err := b.Resolve(p.ForwardPath)
  	if err != nil {
  		return f, errors.WithStack(errors.Wrap(err, path))
  	}
  	plog.Debug(p, "Resolve", "box", box, "path", path, "file", f)
  	return file.NewFileR(path, f)
  }
docs: // Resolve attempts to find the file in the specific box
  // with the specified key