This UI Extension adds a basic approval workflow to the sidebar of selected content types. Users can request review from their peers and the selected reviewers can provide a positive or negative review with an optional comment. The "Publish" button is only available if there is a positive review and the entry hasn't been modified since the review was submitted.
Under the hood this UI Extension uses PubNub for real-time sync between users and the Storage and Playback feature for persistence. PubNub publish and subscribe key should be provided as instance parameters of the extension in the sidebar.