https://phys.org/news/2018-06-microsoft-embraces-collaboration-75b-github.html > As Microsoft built its business on proprietary software such as the Windows operating system, it came to be seen as an antagonist to the open-source philosophy of free software written by a collaborative community of developers. The company has been working for years to shed that reputation, especially after Nadella took over in 2014. > "Developers will be at the center of solving the world's most pressing challenges," Nadella said in a blog post Monday. "However, the real power comes when every developer can create together, collaborate, share code and build on each other's work."