I love github, but as it is not open source there's no point pretending it doesn't share some of the frustrations that closed-source software bring. Out of all

I love github, but as it is not open source there's no point pretending it doesn't share some of the frustrations that closed-source software bring. Out of all the software I use day-to-day it is the only one that regularly has me thinking "I wish I could change this, or look for an issue or PR discussing changing it". I want mathjax support!