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How GitHub Rewrote Its Copilot Agent Runtime in Rust Using AI
In a landmark feat of software engineering, GitHub has successfully transitioned its core Copilot agent runtime—a critical piece of infrastructure powering the GitHub Copilot CLI, mobile app, and SDK—from TypeScript to Rust. The massive undertaking, which involved replacing over 800,000 lines of production code, was completed in just a few months, largely by a single…
