Store your contacts and calendars on your own Synology NAS, away from the inquisitive eyes of Google, NSA and others.
Baïkal itself is an already existing, lightweight CardDAV (contacts) and CalDAV (calendar) server.
The source code is public, and available to everyone on GitHub. Baïkal is copyright (c) 2013 by Jérôme Schneider, the homepage is http://baikal-server.com.
This SPK package for Synology integrates the Baïkal "flat package", making it easy to install Baïkal on your Synology NAS. The package and manual were made by Erik "Basalt".
=> PDF manual can be downloaded here in the [Files] section, highly recommended <=
If you like Baïkal, please consider making a small donation to the developer Jerome Schneider.
German Synology Forum (writing English is fine):