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This came as a big surprise to me last year. I remember they announced that Codex CLI is opensource, and the codex-rs [0] from TypeScript to Rust, with the entire CLI now open source. This is a big deal and very useful for anyone wanting to learn how coding agents work, especially coming from a major lab like OpenAI. I've also contributed some improvements to their CLI a while ago and have been following their releases and PRs to broaden my knowledge.

[0] https://github.com/openai/codex/tree/main/codex-rs



I know very little about typescript and even less about rust. Am I getting the rust version of codex when I do `npm i -g @openai/codex`?

A stand alone rust binary would be nicer than installing node.


yes [0]

> The Rust implementation is now the maintained Codex CLI and serves as the default experience

[0] https://github.com/openai/codex/tree/main/codex-rs#whats-new...


They should switch to a native installer then. Quite confusing


    brew install codex
https://developers.openai.com/codex/quickstart/?setup=cli


Yeah I'm out here installing a billion node things to have codex hack on my python app. Def gonna look into a standalone rust binary.


They're leveraging the (relative) ubiquity of npm amongst developers.




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