Turborepo is a high-performance build system for JavaScript and TypeScript codebases, reimagining build systems to make them accessible for everyone. It aims to accomplish this through incremental builds, parallel execution, and Remote Caching. Turborepo's caching makes the longest builds near-instant, enabling faster development and iteration. The team has decided to start an incremental migration from Go to Rust in the 1.7 version due to Rust's prioritization of correctness over API abstraction, which aligns with their needs for process management, filesystems, shipping software, and file permissions. Rust's strong ecosystem also benefits Turborepo, allowing for safe interfacing with native C libraries and a great internal developer experience. The migration is part of an incremental process, with the team already using Rust in some parts of the codebase, enabling them to choose between Go and Rust for different implementations.