We talk a lot about Ubiquity being easy to extend, what with the ease of writing your own commands and so on. But did you know that Weave is also built to be extended?

Weave isn’t limited to just syncing those types of data — cookies, history, tabs, etc. — which have support built-in. It has a client API which allows new sync engines to be written and plugged in. A sync engine implements some logic for reading, writing, and updating a data type; the Weave core handles the networking, encryption, and synchronization algorithm.

We’ve recently written up a Wiki page of Weave client API documentation, which explains how to write and install a new sync engine. We hope that having this API documented will inspire the community to experiment with extending Weave to synchronize new data types.