Thank you for inviting me to this superb tool and community.
My name is Ruben, I'm a professor Ph.D. in Artificial Intelligence and a Scuba Diver (among other hobbies), (aka Bèco). I teach programming, logic, AI and discrete mathematics at the University of the State of Pernambuco, northeast of Brazil, although I'm from the southeast, São Paulo state. We are having the Olympics somewhere there in the region (Rio de Janeiro, also southeast, and neigbor).
Please feel free to contact me about my research or repositories. My handle here is @drbeco and that is also my twitter account. You are welcome to follow and keep updated on things like Programming, Linux, Diving, Open Source, Chess, some minor politics and other stuff. I hope I can be of help.
Regarding GitHub, it is wonderful to see this place year after year evolving and becoming more attractive and useful. The classroom tool is very interesting (although still in an early version) and it helps a lot organizing classes.
That is it for now. See you around!