This is a personal project by @dellsystem. I built this to help me retain information from the books I'm reading.
Source code on GitHub (MIT license).
Schneider, N. and Scholz, T. (2017). Showcase 2 - Ecosystems. In Schneider, N. and Scholz, T. (eds) Ours to Hack and to Own. OR Books, pp. 169-181