This package is abandoned and no longer maintained. The author suggests using the contributte/flysystem package instead.
Flysystem integration for Nette Framework.
v1.2.1 2019-10-22 11:38 UTC
The best way to install ipub/flysystem is using Composer:
$ composer require ipub/flysystem
After that you have to register extension in config.neon.
extensions: flysystem: IPub\Flysystem\DI\FlysystemExtension
Learn how to create filesystems and work with files in documentation.