The Chonkerton

Claude Code uses Bun written in Rust now

dev_tools

Hacker News reports that Claude Code has been using a Rust implementation of Bun, a JavaScript runtime, since version two point one point one eighty-one. The discovery emerged from an investigation of the AI development tool's binary.

Source: https://simonwillison.net/2026/Jul/19/claude-code-in-bun-in-rust/

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