EteSync sync backend for Akonadi

The Akonadi framework is responsible for providing KDE PIM applications with a centralized database to store, index and retrieve the user's personal information. The data can be stored either in local files or can be synced via a host of services like Google Calendar, Microsoft Exchange WebServer (EWS) or a number of Groupware servers like Nextcloud, DAV etc.

The proposed project is to add to this list a secure, end-to-end encrypted, FLOSS sync solution for your contacts, calendars and tasks, called EteSync. EteSync clients are available for Android, iOS, the desktop (Cal/CardDAV bridge) and the web, and a Thunderbird plugin is in the works. The server too is open-source and can be self-hosted.

The idea is to implement an Akonadi backend resource to enable KDE users to use EteSync to easily end-to-end encrypt and sync their contacts, calendars and tasks.