Let your AI agents paint big arrows, boxes and text on your screen

https://raw.githubusercontent.com/franzenzenhofer/big-arrow-on-the-screen/main/docs/images/hero-hn.png
A new macOS agent skill, called "bigarrow", allows a program to point at specific elements on the screen without stealing focus or clicking. It can be used for tasks such as guided setups and onboarding, debugging coordinates, and providing visual feedback.

Nobel Peace Prize for 2026 to Navanethem "NAVI" Pillay

https://www.nobelprize.org/uploads/2022/10/nobel-peace-prize-logo.jpg
The Nobel Peace Prize for 2026 is awarded to Navanethem "Navi" Pillay for her efforts to promote peace and international law, recognizing her courage and integrity in combating war crimes, crimes against humanity, and genocide. Navi Pillay's commitment to universal legal principles has significantly enlarged the scope and impact of international law.

I'm in a Meeting

Why isn't the industry freaking out about DeepSeek 4.1 Flash?

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The author has been using DeepSeek 4.1 Flash for a month, finding it comparable to Opus in terms of performance and cost-effectiveness. They praise the model's ability to handle complex tasks without significant differences from other models, making it an attractive option for developers on a budget.

Whistle: Speech to Text in 16.9 MB

https://cactuscompute.com/assets/cactus_white.png
Whistle is a speech recognition model released for mobiles, wearables, and other devices with no dependencies or CPU usage. It supports 7 languages and provides word timestamps, speech embedding, and transcript output.

Once: Cache CLI Commands

https://opengraph.githubassets.com/64e0c0a56ac7b5d84c0f0fa6d631177e41c8cfb482190dde5102906b0b0aa24e/alex0ptr/once
The once command executes a given command in the current directory, caches its stdout and keeps it in memory until an expiration time is reached. The cache key is generated using the tenant key, working directory, and command arguments.

MXC - a sandboxed code execution system

https://opengraph.githubassets.com/207863e8d97ca4928e000ba04e6282491be1bc486f70c49e261dd9c5692e7726/microsoft/mxc
MXC is a sandboxed code execution system for running untrusted code on Windows, Linux, and macOS. It provides multiple containment backends with a unified model and typed SDKs for secure execution.

Man discovers his parents' coffee machine used 1TB of data in 10 days

https://www.dexerto.com/cdn-image/wp-content/uploads/2026/10/07/coffee-maker-stock-photo.jpg?width=1200&quality=60&format=auto
A man, Nomad, discovered his parents' coffee maker was uploading 1TB of data in 10 days and shared the issue on X. He found it caused saturation within their home Wi-Fi setup and decided to get them a new one due to potential security risks.

Keyboard differences between Windows and Macs

https://unsung.aresluna.org/_media/deeper-dive-keyboard-differences-between-windows-and-macs/ogimage.jpg
This post compares keyboard handling differences between Mac and Windows, including key names, modifier keys, and shortcut conventions. The main differences include the use of ⌥ (Option) instead of Alt on Macs and Ctrl on Windows.

I hired an illustrator to draw my house. Now it's my Home Assistant dashboard

Yes, and

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Carson Gross, a computer science professor, believes AI will change programming but not dramatically. He advises juniors to write code themselves and use AI as a helpful tool rather than a code generator.

Theranos.world

https://www.theranos.world/assets/office-extended-v1.optimized.webp
An interactive simulation of Elizabeth Holmes' desk. Open her MacBook, scroll her iPhone, run the Edison machine. Every text and email is real, from the court trial, parsed by Extend.

OpenAI fires three safety researchers for "mishandling research information"

https://techcrunch.com/wp-content/uploads/2026/09/openai-getty.jpg?w=1024
Researchers at OpenAI were fired after allegedly sharing confidential company information with an outside AI safety organization, sparking concerns about the company's culture and treatment of employees. The researchers deny wrongdoing and claim their firing is part of a broader shift in OpenAI's culture that discourages open communication and collaboration with external experts.

The value of not getting to the point (2015)

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The author realized that conversation is often a warm-up process, and people may need time to feel comfortable discussing sensitive topics. This understanding came from their experience with their daughter and the limitations of language in expressing emotions.

Ask HN: What do you run on a $5 VPS that's worth keeping online 24/7?

Sorry

OpenAI, the Partition Principle, and Mathematics

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A mathematician is disappointed with OpenAI's preprint on the Partition Principle, citing poor writing quality and unclear structure. The author believes that such a paper should be rejected for its lack of clarity and accessibility to non-experts in the field.

ETH-68: Ethernet Audio Interface for Linux

https://naturalsystems.io/assets/images/eth68_1u_3x.png
eth68 is a scalable audio interface that synchronizes multiple units to increase channel count without increasing round trip audio latency, achieving 3.620 milliseconds of latency at 48 kHz. It matches the RME card's performance and surpasses it by 0.33 ms at 96 kHz with PipeWire or JACK interfaces.

AI-ready biological data: $1.8B global commitment

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Biohub, the US Department of Energy and National Institutes of Health are investing $1.8 billion to generate AI-ready biological data for predictive models of life. This will enable researchers to digitally ask, predict and answer biological questions, accelerating disease prevention and treatment.

Show HN: Quake ported to safe Rust, playable in browser

User controls can be customized with options for mouse speed, movement, and camera control. Various keyboard shortcuts are available for quick actions such as saving, loading, and quitting the game.

Beauty in DVD Menus

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DVD menus were a key feature of early DVD releases, offering interactive options and immersive experiences. Many classic DVDs showcased creative and engaging menu designs that have become nostalgic favorites among fans.

DuckDB Ducklake

https://opengraph.githubassets.com/2d4126f8f9239ea373cefa4c9021d8d7a6c887f025ff95230ac041dd2ff57f60/duckdb/ducklake
DuckLake is an open Lakehouse format built on SQL and Parquet, allowing direct read and write with DuckDB. It stores metadata in a catalog database and data in Parquet files, supporting standard SQL queries.

A Terminal Protocol for Program Status (OSC 7501)

The author proposes OSC 7501, a terminal escape sequence protocol to provide a generic and interaction-agnostic way for programs to report their status, progress, and completion. This protocol aims to replace existing heuristics-based approaches with a unified standard that allows terminals to display program status in various ways.

Show HN: Making a flexible "neon" t-shirt with LED filaments

Google's system detected unusual traffic from your computer network, possibly due to malicious software or automated requests. Solving the CAPTCHA will allow you to continue using Google services temporarily.

OpenAI withdraws three mathematical results

https://pbs.twimg.com/media/HUFmAa0bIAAa_O1?format=webp&name=large
We've updated our GitHub math repo with 6 new Lean formalizations, 19 modifications, and 3 withdrawals. The repo now has ~42% top-line results formalized. We will continue to update the repo with new formalizations and with any errata we notice. https://t.co/HI6otY2NTO

I think I found a planet nobody knew existed. I used Claude Code to find it

To continue, log in to your Reddit account or use your developer tokenIf you think you've been blocked by mistake, file a ticket below and we'll look into it.

ADHD as a circadian rhythm disorder: evidence and implications for chronotherapy (2025)

https://www.frontiersin.org/files/Articles/1697900/xml-images/fpsyt-16-1697900-g001.webp
Individuals with Attention-Deficit/Hyperactivity Disorder (ADHD) often experience circadian rhythm dysfunction, which affects up to 80% of adults and 82% of children. This disruption can lead to improved symptoms when targeted through behavioral interventions such as melatonin therapy and bright light exposure.

Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

https://t0.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL&url=https://openclaw.ai/&size=256
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). $1 per million input tokens, $2.70 per million output tokens. 1,000,000 token context window, maximum output of 64,000 tokens.

Archaeologists Are Reconstructing the 'Invisible' Technologies of the Stone Age

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Archaeologists have discovered ancient artifacts, such as the ivory lochstab from Hohle Fels cave, that reveal prehistoric hunter-gatherers used soft technologies like fiber to shape their daily lives. These technologies were essential for survival but often overlooked in the archaeological record.

What should we tell our students?

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The author, a mathematician, shares his thoughts on the impact of AI and LLMs on mathematics research. He believes that while AI can accelerate progress in math, it will not replace human mathematicians and that there is still much to be done in the field.

Bevy 0.20

https://bevy.org/news/bevy-0-20/zorah.jpg
Bevy 0.20 is released with numerous new features, bug fixes, and quality of life tweaks, including Solari's improved path tracing renderer, BSN syntax improvements, and enhanced UI widgets. The engine now supports WESL shaders and mesh shaders for advanced graphics capabilities.