8. All of my code is not on Github, and there is no reason for me to learn a language simply because I have previous knowledge in Ruby. I chose to learn Crystal because of it's elegance and speed.
9. I wrote that reverse proxy based on a variety of online tutorials[1], but used my knowledge of threads to make it multithreaded.
[1] http://www.gilesthomas.com/2013/08/writing-a-reverse-proxylo...