kapynDev Tools

Migrating the GitHub Copilot runtime to Rust, using Copilot

GitHub Copilot’s runtime is rewritten in Rust to boost performance and maintainability. The new Rust implementation spans 800,000 lines of production code, replacing the original language and enabling faster compilation and safer memory handling. The rewrite demonstrates how large‑scale AI tooling can be ported to a systems language, offering developers a more efficient and reliable foundation for future Copilot features.

GitHub Blog·Sep 17, 2026

Opening Kapyn…