Baikal for Synology Icon

Baikal for Synology

Synology DSM installable package for Baïkal CalDAV & CardDAV server

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Download baikal-0.2.7-002.spk
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BSD Linux



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

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):ïkal-contacts-(CardDAV)-and-calendar-(CardDAV)-installation-package-for-Synology&p=392006&viewfull=1#post392006

Baikal for Synology Web Site


  • Baïkal CardDAV server for Contacts
  • Baïkal CalDAV server for Calendars
  • Lightweight, 2 MB code base, just wat you need: nothing more, nothing less.
  • Install, upgrade and uninstall using DSM Package Center
  • Baïkal icon in the DSM Start Menu for the Baïkal Web Admin configuration tool
  • Unlock the Web Admin using DSM Package Center (stop/run)
  • Your choice: use SQLite or MySQL to store contacts/calendar data
  • Suitable for DSM 4 and DSM 5
  • Written in PHP and shell scripts, should run on any Synology NAS ("no architecture")
  • The base version number of this package (x.y.z) is equal to the Baïkal version
  • Comprehensive manual (PDF file), also covering the Client side configuration
  • Manual based DSM 5, old version available for DSM 4


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Additional Project Details

Intended Audience

System Administrators

User Interface


Programming Language

Unix Shell, PHP



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