Baïkal is a CalDAV and CardDAV server that enables users to host their own calendar and contacts infrastructure.
The server solves the problem of calendar and contact synchronization across devices without relying on third-party cloud services. It implements the CalDAV and CardDAV protocols, which are open standards that allow calendar and contact clients to store and retrieve data from a central server. This approach lets users maintain full control over their data while using standard client applications that support these protocols.
Baïkal suits individuals and small organizations seeking self-hosted calendar and contacts management. It works well for users comfortable running a server on infrastructure like a Raspberry Pi or a dedicated machine, and for those who want to avoid commercial calendar and contacts services. The project provides installation and upgrade documentation on its main website, along with community-contributed guides in German and French that emphasize step-by-step instructions for users with limited IT experience. These guides cover setup on specific platforms, integration with common clients like Thunderbird, Android, DavX5, and iOS, calendar sharing, database maintenance, and security considerations.
The project is maintained by volunteers following its original creation. Development activity shows consistent engagement with the codebase through ongoing maintenance and updates. The tool receives attention to documentation quality and user accessibility, as evidenced by the availability of detailed guides in multiple languages aimed at non-technical users. Community contributions to the project's public-facing materials indicate active effort to lower barriers to adoption and successful deployment.
