Allow me the opportunity to also plug Gorgonia (which this books is about) - it's Hacktoberfest right now and there are many issues in Gorgonia tagged Hacktober

Allow me the opportunity to also plug Gorgonia (which this books is about) - it's Hacktoberfest right now and there are many issues in Gorgonia tagged Hacktoberfest: github.com/gorgonia/gorgonia Its contributors are quite active on Github and quite helpful - Olivier, Darrell, Gareth, Nabil, etc.