### interacting with files

### interacting with files under the save directory

  Make sure `filename` is an absolute path so that your app can work reliably
  by double-clicking on it.

  Make sure `filename` is an absolute path so that your app can work reliably
  by double-clicking on it.

* `App.mkdir(path)` -- creates a directory. Make sure `path` is absolute.

* `App.mkdir(path)` -- creates a directory.

* `App.remove(filename)` -- removes a file or empty directory. Definitely make
  sure `filename` is an absolute path.

* `App.remove(filename)` -- removes a file or empty directory.

  App.file_info = nativefs.getInfo