DecSync

DecSync (Decentralized Synchronization) synchronizes RSS, contacts, calendars, tasks and more without requiring a server. It uses a synchronized directory to synchronize the data. This can be done without a server by using for example Syncthing, but any other method like Google Drive or Dropbox also works.

DecSync can also be used to synchronize custom key-value mappings, but currently synchronization of RSS, contacts, calendars, tasks and memos is implemented using the following applications.

RSS

• FeedReader with DecSync plugin (Linux)
• spaRSS DecSync (Android)

Contacts/Calendars/Tasks/Memos

• DecSync for Radicale (Radicale plugin, Windows and Linux). Allows for synchronization with any CalDAV/CardDAV compatible client like Thunderbird.
• DecSync for Evolution (Evolution plugin, Linux)
• DecSync CC (Android). Tasks are supported through OpenTasks and tasks.org, memos are not supported.

To start using DecSync, all you have to do is install some of the applications above and synchronize the DecSync directories.

Technical

If you want to use DecSync in your own application, you can use the multiplatform library libdecsync.

The structure of the synchronized mappings used for RSS and contacts/calendars are described in rss.md and contacts-calendars.md.

Information about the design of DecSync, and how to apply it is given in design.md.

For details about the internal implementation, see spec-general.md.

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