Github would have also gone nowhere if they only supported code written in one text editor.
Most EDA software is written by companies who have no interest in letting you see how their proprietary formats work.
Most EDA software is written by companies who have no interest in letting you see how their proprietary formats work.
Oh boy, I know it, and it's been a pain in my side. However, EAGLE (lots of hobbiests use it) is migrating to a fully-documented XML-based format [1], and there are two open-source projects for schematic capture, kicad and geda, which would give someone a head start on parsing their design files, at least.