Bun, the all-in-one JavaScript runtime, has achieved 99.8% test compatibility in its experimental Rust rewrite for Linux x64 glibc systems. This significant milestone demonstrates the feasibility of transitioning from Zig to Rust while maintaining high compatibility, though some edge cases remain. The development has sparked discussions about language choices in systems programming and the future of JavaScript tooling.
Background
Bun is a fast all-in-one JavaScript runtime and toolkit that aims to replace Node.js, npm, and other tools. It was originally written in Zig but has been undergoing a rewrite in Rust to improve performance and developer experience.
- Source
- Hacker News (RSS)
- Published
- May 9, 2026 at 06:12 PM
- Score
- 7.0 / 10