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Back to EpisodesHacker Newsroom for 28 July: Kimi K3 Release, Rare Book Scanning, Open Weights Policy, Bun Rust Rewrite
Description
Hacker Newsroom for 28 July recaps major Hacker News stories, moving through kimi k3 release, rare book scanning, open weights policy, bun rust rewrite.
1. Kimi K3 Release
The next story is Kimi-K3 on Hugging Face, Moonshot AI's newly posted model card for a 2. 8 trillion-parameter open-weight multimodal mixture-of-experts system with native vision, a 1 million-token context window, MXFP4 quantization, and benchmark claims that put it close to the current frontier on coding, agent work, and reasoning.
2. Rare Book Scanning
One of the top Hacker News stories is a viral X post claiming AI companies are bulk-buying older and sometimes scarce books, slicing off the spines for high-speed scanning, and shredding the originals to build training corpora, with ISBNdb allegedly brokering large anonymous orders and courts effectively blessing the practice as fair use. The post frames that as a step beyond web scraping because the destruction is irreversible, and argues that demand for pre-2022, non-synthetic text plus copyright and DRM constraints are pushing firms toward physical-book pipelines instead of licensed ebooks.
3. Open Weights Policy
The next story is Anthropic's new article on open-weights models, where Dario Amodei says the company is not calling for a blanket ban and still sees less dangerous open models as a public good. The article instead argues for three targeted measures: keeping advanced chips and chipmaking tools out of China, cracking down on industrial-scale distillation, and requiring mandatory safety testing for sufficiently capable models whether they are open or closed.
4. Bun Rust Rewrite
The next story looks at Tom Lockwood's post questioning Anthropic's headline claim that Bun was rewritten from Zig to Rust in 11 days for $165,000, arguing that the lack of a release by July 27, 2026, the growing pile of robobun pull requests, and continued employee involvement suggest the real cost and timeline are much larger. The article's point is not that the Rust port is fake, but that calling it done overstates what has actually shipped and turns an ongoing, heavily supervised migration into a clean AI success story.
5. Kimi K3 Report
The next story is Kimi-K3, a technical report from Moonshot AI on a new open-weight mixture-of-experts model that claims strong reasoning, coding, and agent-style performance while also shipping infrastructure around serving and tooling. On paper, the report reads like a bid to show that open-weight labs are still moving quickly on efficiency and capability, not just following the biggest closed-model companies.
6. Decker HyperCard
The next story is about Decker, an open-source multimedia platform that revives a lot of HyperCard's spirit while adding modern conveniences like touch support, deep undo, reusable widgets, a scripting language called Lil, and export to self-contained HTML files. The project is pitched as a lightweight way to make interactive document