WHEN YOU STREAM the latest Netflix show, you fire up servers on Amazon Web Services, most of which run on Linux. When an F-16 fighter takes off, three Kubernetes clusters run to keep the jet’s software running. When you visit a website, any website, chances are it’s run on Node.js. These foundational technologies—Linux, Kubernetes, Node.js—and many others that silently permeate our lives have one thing in common: open source.
Open source is a technology development and distribution methodology, where the codebase and all development—from setting a roadmap to building new features, fixing bugs, and writing documentation—is done in public. A governing body (a group of hobbyists, a company, or a foundation) publicly manages this work, which is most often done in a public repository on either GitHub or GitLab.