As last year, I gave a talk at PyCon Taiwan 2013 about "How I transform StreetVoice from Windows/ASP to Linux/Python"
This year at PyCon APAC 2014, I gave this talk: "The workflow of new StreetVoice" , including the stack we are using, the deployment, development process, and how we use hipchat to connect all the other services like, travis-ci, github, coveralls, hubot and saltstack.
And we continue to Open Source, release lots of django apps and python packages.