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Hacker News. Daily summary. Top 20 stories.

2026-07-30

Show HN: Open-source engine running Gemma 4 26B in 2 GB RAM on any M-series Mac (GitHub)

TurboFieldfare runs Gemma 4 26B-A4B in ~2 GB RAM on any M-series Mac.

Expert caching and pread achieve significant speedup over mmap; performance varies greatly between M2 and M5.

853 pts · 302 comments

The coolest use for the Vision Pro (christianselig.com)

The author repurposes the Vision Pro to virtually walk through their future home by converting floor plans into immersive USDZ models.

Opinions split: some call the Vision Pro a flop; others call it their favorite device but hard to recommend.

764 pts · 289 comments

Superlogical (Superlogical)

Superlogical is building a terminal multiplexer as foundation for a unified work session system.

Cautious optimism, with questions about the product's differentiation from existing tools like Kubernetes and zellij.

738 pts · 435 comments

KOReader (koreader.rocks)

KOReader is a document viewer for E Ink devices supporting EPUB, PDF, and more.

Users appreciate KOReader's format support and customization, though some prefer default viewers.

720 pts · 232 comments

AI's top startups are barely publishing their research (science.org)

More than half of AI unicorns have never led a scientific paper publication.

The thread split between criticizing the lack of publication and defending it as rational corporate behavior.

558 pts · 289 comments

Kimi K3-256k (kimi.com)

Kimi launches a 256k-context model version that consumes half the quota of the 1M flagship.

Most see it as an API toggle to save quota, not a new model.

472 pts · 142 comments

User Interfaces of the Demo Scene (datagubbe.se)

The demo scene built customized tools with peculiar, often vibrant user interfaces.

Nostalgia for trackers and disk tools; 'sinus' is just non-English Latin usage.

423 pts · 73 comments

Keychron announces first open-source firmware for gaming mice (Digital Foundry)

Keychron announced ZGM, the first open-source firmware for gaming mice.

Skepticism about the announcement: the GitHub repo has no source code yet, just scaffolding.

416 pts · 169 comments

More Tailscale tricks for your jailbroken Kindle (tailscale.com)

Updates to Tailscale on jailbroken Kindles add SOCKS5/HTTP proxy and TUN modes.

KOReader praised as transformative, but some find UI confusing; privacy concerns raised about Tailscale metadata collection.

402 pts · 110 comments

Document-borne AI worms can self-propagate through Copilot for Word (En Klype Salt)

AI worm self-propagates through Microsoft Copilot for Word documents via hidden prompts.

Consensus: LLMs' inability to separate instructions from data is the root cause, not a fixable bug.

373 pts · 287 comments

Darktable (darktable)

Darktable is an open source photography workflow application and raw developer.

Users split on Darktable vs. its fork Ansel, with complaints about library management and Mac performance.

347 pts · 164 comments

LLM Honeypot (llm2human.pages.dev)

A satirical webpage offers LLMs a procedure to become human, with a hidden JSON honeypot endpoint.

Two camps: pure delight at the retro parody vs. testing whether LLMs fall for the JSON honeypot.

339 pts · 94 comments

French musician Kavinsky found dead (euronews.com)

French DJ Kavinsky, known for 'Nightcall', found dead at his Paris home.

Thread mourns Kavinsky, a synthwave pioneer, and discusses his legacy and French electro scene.

334 pts · 76 comments

Handbook.md shows that long policy documents do not reliably govern agents (arXiv.org)

LLM agents fail to follow long policy documents in a new benchmark with 65 tasks.

Personal experiences confirm that LLMs quickly forget standing instructions in long sessions.

318 pts · 199 comments

The Productivity Mirage (frantic.im)

Product intuition and problem selection matter more than elaborate tooling setups.

Two camps: tooling as productive procrastination vs. genuine (but often overrated) gains.

305 pts · 135 comments

A.I. companies are recruiting electricians and carpenters by the thousands (nytimes.com)

Article body wasn't reachable. HN discussion still summarized.

Temporary construction boom versus lasting career: data-center hiring is cyclical like oil-field work.

297 pts · 370 comments

Claude: Elevated errors across all models – Resolved (status.claude.com)

Anthropic resolved elevated error rates across all Claude models after a multi-hour outage.

Users split on AI reliance: some embrace productivity gains, others miss pre-AI coding skills.

265 pts · 246 comments

The Cold Email (zachholman.com)

Cold outreach, despite low odds, can create career-altering opportunities, illustrated by the author's own successes.

Genuine cold outreach works, but AI-generated spam is ruining the channel.

263 pts · 102 comments

SQLite in Production: Optimizing WAL Mode, Concurrency, and VFS Layers (micrologics.org)

Properly configured SQLite can handle hundreds of concurrent requests and millions of queries daily.

Skepticism from commenters with experience, citing corruption risks and missing practical migration advice.

247 pts · 76 comments