We introduce an end-to-end toolset for the production and delivery of synchronous multi-device content. We outline the application scenario requirements and the challenges involved in creating video content that works across the TV, companion screens and head mounted displays. We describe the three main components of the toolset. The production tool is implemented as a custom Adobe Premiere Pro plugin. The publication and delivery process is implemented as an online service controlled through a web application. The content playout is implemented with a multi-device video player that combines video decoding and playout based on the GStreamer media framework, combined with the Unity3D game engine. Finally, we detail the system performance on different devices, and next steps.