The Radicale Project is a CalDAV and CardDAV server. It aims to be a light solution, easy to use, easy to install, easy to configure. As a consequence, it requires few software dependencies and is pre-configured to work out-of-the-box. The Radicale Project runs on most of the UNIX-like platforms and Windows. It is known to work with Evolution, Lightning, iPhone and Android clients. It is free and open-source software, released under GPL version 3.