Initially, this demo started being developed in https://github.com/dcgraph/bvs-cosmos, private repository of DCGraph Inc. At the time of leaving the company, I acquired an agreement to allow me to continue this project. (Well, I was the sole contributor on the original project anyway.) I will continue the project as a derivative of the original one, but the original repository was private at the time of my leaving the company, and it still is now (at the time of writing this ack).
So, this project is sort of indirect fork of the original one, since I couldn't fork it via github platform.