From the Cathedral to the Bizarre: Microsoft’s Open Source Journey
summary
Microsoft moves from hostile to major contributor by opening .NET, shipping Visual Studio Code, joining the Linux Foundation and adopting Chromium; the company reports ~25,000 employees on GitHub and ~8,800 Microsoft repos, and .NET now receives most merges from outside Microsoft. Security tooling shifts from WhiteSource/Snyk/Black Duck scans to GitHub-integrated dependency alerts and automated pull-request fixes; Semmle-style code-pattern queries become free for OSS. Companies reduce integration debt by pushing fixes upstream, build internal inner-source workflows, and see surprising wins like Windows Terminal and faster cross‑platform support.
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chapters (11)
- 0:00Intro
- 6:20Open source software in the Enterprise
- 8:59GitHub Advanced Security Securing the software supply chain
- 13:54The Contribution Funnel
- 18:53Team Foundation Version Control
- 22:26How OSS Contribution fits into Microsoft's strategy
- 24:24Dubious OSS "Business Goals"
- 25:55Convince your Stakeholders
- 31:20Microsoft Edge adopting Chromium
- 37:23The Great Unexpected
- 40:53Driving Culture Change
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