Xyster requires no special installation steps. Simply get a copy of the framework and ensure that the /library directory is in your PHP include_path.
Xyster is built with object-oriented PHP 5 and requires PHP 5.2.0 or later. Xyster requires the availability of the Zend Framework, version 1.5.0 or later.
Once you have a copy of Xyster and the Zend Framework available, your application needs to be able to access the framework classes. Though there are several ways to achieve this, your PHP include_path needs to contain the path to the Xyster and Zend Framework library folders.
Since Xyster and Zend Framework components are rather loosely coupled, various components may be selected for independent use as needed.