(Adam from Realm) No this version does not include sync functionality, it is just for use with Realm locally. We wanted to expose it to the Node.js community as

(Adam from Realm) No this version does not include sync functionality, it is just for use with Realm locally. We wanted to expose it to the Node.js community as we think it has value on its own--such as interprocess communication as mentioned in the article. However, stay tuned more updates around sync very soon!