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Rars: a Rust RAR implementation, mostly written by LLMs

A developer publishes Rars, a Rust-based RAR implementation built largely with Claude and GPT-4.5, covering multiple RAR versions with working but unoptimised compression.

May 13 · 21:59:35 · primary fetch1 sourceupdated May 13 · 21:59:35

I spent a fortnight using Claude to create specs for every version of RAR, then another using gpt-5.5 to write compressors in Rust.It's not fast and it's not pretty, but it works.

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bitplane.netRars: a Rust RAR implementation, mostly written by LLMsprimary21:59:35