Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

[http://www.hypergraphdb.org—The main website for HyperGraphDB](http://www.hypergraphdb.org—The main website for HyperGraphDB)

https://github.com/twitter/flockdb—The main website for FlockDB

https://github.com/twitter-archive/flockdb—The main website for
FlockDB