Bun Rewrites 535K Lines of Zig into Rust in Four Months, Eliminates Numerous Memory Leaks

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Bun creator Jarred Sumner recently announced that Bun, the JavaScript/TypeScript runtime, bundler and package manager has been rewritten from Zig to Rust. The rewrite seeks to eliminate recurrent memory safety vulnerabilities via Rust’s borrow checker. The AI-assisted rewrite was released after 4 months of work instead of the estimated one year. By Bruno Couriol