Quoting Mitchell Hashimoto

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programming-languages fungibility bun rust zig mitchell-hashimoto opinion

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Mitchell Hashimoto comments on the increasing fungibility of programming languages, using Bun's rewrite from Zig to Rust as an example, suggesting that languages are no longer a source of lock-in.

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Cached at: 05/15/26, 12:20 AM

# A quote from Mitchell Hashimoto Source: [https://simonwillison.net/2026/May/14/mitchell-hashimoto/](https://simonwillison.net/2026/May/14/mitchell-hashimoto/) 14th May 2026 > \[\.\.\.\] On the interesting side is how fungible programming languages are nowadays\. Programming languages used to be LOCK IN, and they're increasingly not so\. You think the Bun rewrite in Rust is good for Rust? Bun has shown they can be in probably any language they want in roughly a week or two\. Rust is expendable\. Its useful until its not then it can be thrown out\. That's interesting\! —[Mitchell Hashimoto](https://twitter.com/mitchellh/status/2055039647924007222),on Bun porting from Zig to Rust

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