“Developers are the builders of this new era, writing the world’s code,” Mr. Nadella wrote in a blog post. “And GitHub is their home.”
GitHub, founded in 2008 and based in San Francisco, was created largely as a community for software developers to share programming tools and code. It has been a champion of the open-source software movement, with its ethos of freely sharing code.
The open-source model was once anathema to Microsoft, the leading commercial software company. But Microsoft has come to embrace open-source tools. Microsoft is the most active corporation on GitHub, with more than two million contributions of code to GitHub projects.
GitHub, seeking to establish a profitable business, has increasingly hosted corporate software projects on its platform. Those projects have typically used open-source software development techniques while keeping some code proprietary. The companies involved with GitHub own the resulting software applications.