Hello, last information is that BWRC (Berkeley Wireless Research lab) has published initial work-in-progress BAG3++ documentation. It mentions the instructions for installing the dependencies, the openly available workspaces, and some basic examples. BWRC students will keep adding more detailed explanations and more complicated examples, but the current version should be sufficient to get started. As the current main developer Ayan Biswas is soon graduating I will try to get contact point for reporting any bugs or missing information that you may encounter in the doc.