Bun’s AI‑assisted Rust rewrite eliminates memory bugs, proves Rust viable for runtimes
Bun’s creator rewrote the JavaScript runtime from Zig to Rust using the AI‑powered tool Fable. The migration removed hundreds of memory‑safety bugs and showed that Rust can deliver performance comparable to Zig for production‑grade systems. It signals a turning point for AI‑guided language migrations in infrastructure code.