Bun Runtime Begins Major Rewrite in Rust

Jarred Sumner, Bun's creator, said on X that the JavaScript runtime is being rewritten in Rust and linked to Bun's own post, "Rewriting Bun in Rust". For now, that makes this a story sourced from Bun's announcement and Sumner's post, not outside reporting. Even with that limit, the shift is notable: Bun has been closely associated with Zig, so the announcement points to a major change in how the project is discussed in public.