TLDR Tech / Dev
What can we learn from Bun's rapid Rust rewrite with AI?
Bun, a JavaScript runtime, underwent a huge rewrite from Zig to Rust to address persistent memory-related bugs that were problematic in Zig, a language not designed for memory safety. Using Claude Fable, the rewrite was done over 11 days with the help of 64 AI agents, resulting in the migration of over 535,000 lines of code and the resolution of 1,600 compiler errors.
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