Ravel is a proprietary program for data analysis which currently only runs on Windows (version 8 and later). It consists of a plugin for the Ravel application, also known as Minsky, which is an open source program available for Windows, Mac OS X,and various Linux distributions. After obtaining Minsky (from the Patreon Store), you will need to select ``Upgrade'' from the File menu to install the latest version of the Ravel plugin.
Some components of the interface are specific to Minsky. This ``Getting Started'' guide focuses on the components used by Ravel. For a getting started guide to see Minsky.