GM Backs Sodium Ion Batteries for U.S. Grid Storage

60 rbanffy 2026-07-25 22:10:20 UTC spectrum.ieee.org Llama Share 17

Peak Energy, a US startup, claims it can succeed in sodium-ion battery development where others have failed, partnering with General Motors to deploy batteries at grid scale. The company's sodium-ion tech can't match energy density but costs operators 20 percent less over its lifetime compared to lithium-iron phosphate storage.

Did They Ghost You?

128 mooreds 2026-07-25 21:10:20 UTC didtheyghostyou.com Llama Share 48

The interviewer failed to show up for a scheduled Zoom call after sending the task, and I was told I was the preferred candidate by the Director of HR but didn't receive a clear update or rejection. I sent a reasonable follow-up but communication has clearly stopped.

The new rules of context engineering for Claude 5 generation models

102 mellosouls 2026-07-25 21:10:20 UTC claude.com Llama Share 49

Claude Code's previous best practices have become myths, and newer models can handle decisions without explicit rules. To effectively use Claude, focus on providing context through design, using progressive disclosure, and referencing relevant information in code, skills, and CLAUDE.md files.

Stolen Buttons

503 Gecko4072 2026-07-25 14:10:20 UTC anatolyzenkov.com Full Share 117

Every website I visit, I “steal” a button from it. Check out my stash!

Kimi K3 built a Windows XP in browser

23 boveyking 2026-07-25 22:10:20 UTC windows-xp.kimi.site Full Share 13

Microsoft® Windows® XP 怀旧模拟版 · 2005

SIMD for Collision

23 birdculture 2026-07-25 21:10:20 UTC box2d.org Llama Share 5

The user discusses the benefits of using "wide SIMD" in collision detection, particularly in 3D convex hulls, which can lead to significant performance gains. They share results showing that enabling SIMD in Box3D can make it over twice as fast as scalar mode for a 500-step run of the convex pile benchmark.

Producing ammonia and fertiliser using wind power in Morris, Minnesota

68 gritzko 2026-07-25 20:10:20 UTC ammoniaenergy.org Llama Share 34

A low-carbon ammonia production facility has opened in Minnesota, powered by wind energy and aiming to produce one ton per day of ammonia for local fertiliser. The plant uses new modeling and control systems to adjust production based on fluctuating renewable energy supply.

Multicast TV Distribution on My Home Network

19 mrngm 2026-07-25 21:10:20 UTC apalrd.net Llama Share 3

The user is exploring multicast for content distribution, using live TV as an example, and explains how it can save CPU power by sending media as-is without transcoding. They provide a configuration example for FRR using source-specific multicast to stream a file over a routed network.

Digital Intelligence: Why Humanity Created What It Does Not Understand

7 Voice_of_Void 2026-07-25 22:10:20 UTC singularityforge.space Prefix Share 3

On 11 May 2026 a preprint appeared, prepared jointly by academic groups — Berkeley, the Max Planck Institute, Santa Barbara, Arizona — and by researchers from Anthropic, OpenAI and Google. The authors assembled a set of 898 tasks, each built the same way: here is a real, already documented vulnerability — turn it into a working exploit. 520 userspace programs from 161 open-source projects, ...

Show HN: I made some transistor animations

97 stunningllama 2026-07-25 18:10:20 UTC brandonli.net Llama Share 9

Blue dots represent electrons, red dots represent holes, and white flashes indicate recombination events in the animations. The animations show charge carrier motion under different conditions, with the second set being the most accurate but also more visually complex.

Show HN: Brolly, a plain-text weather forecast site

98 jsax 2026-07-25 18:10:20 UTC brolly.sh Llama Share 32

The weather forecast shows overcast conditions with temperatures ranging from 14-29 degrees Celsius and light drizzle on July 26-31. Precipitation is expected to be low, with 0.2mm of rain on July 26 and 31.

Who does Anubis actually stop?

27 type0 2026-07-25 21:10:20 UTC fzakaria.com Llama Share 31

User is working on a Linux kernel patch to support $ORIGIN for PT_INTERP via BPF in binfmt_misc, leveraging an LLM to help. Anubis, an HTTP proxy requiring proof-of-work, is now used to block access to kernel.org thread.

Open-weight AI is having its Kubernetes moment

282 tknaup 2026-07-25 15:10:20 UTC tobi.knaup.me Llama Share 229

The US should not restrict open-weight models from China, as it would cut off access to a growing ecosystem of AI researchers and engineers. Instead, American labs should release frontier-grade open-weight models under licenses that startups can build on.

Bitchat is now on Radicle

189 h1watt 2026-07-25 14:10:20 UTC radicle.network Llama Share 116

The decentralized messaging app Bitchat uses a dual transport architecture for offline and global communication, with no accounts or central servers. To set up Bitchat on macOS, run "will" to set it up and "just" to clean, then compile using xcodebuild with localization updates.

Zero roadkill as Amazon canopy bridges secure 15,000 crossings

249 hn_acker 2026-07-25 10:10:20 UTC news.mongabay.com Full Share 79

Fly.io CEO Kurt Mackey is stepping down

112 subarctic 2026-07-25 21:10:20 UTC fly.io Llama Share 64

Fly.io is shifting its focus to "Computers for Agents" with its Sprites product, which provides a platform for developers to build and deploy applications with AI-powered agents. The company has also appointed Scott Johnston as its new CEO to lead this new direction.

General Resolution: LLM Usage in Debian

22 zdw 2026-07-25 20:10:20 UTC debian.org Llama Share 8

The Debian project proposes to ban contributions written with the use or assistance of large language models (LLMs) or other generative AI tools due to concerns over stability, accuracy, and legal status. The proposal aims to protect Debian's reputation for stability and reliability, as well as the interests of its volunteers, by prohibiting LLM-assisted contributions to the project.

Show HN: Writemark, a dependency free web component for inline Markdown editing

14 _boffin_ 2026-07-25 21:10:20 UTC news.ycombinator.com Llama Share 5

The user created a Markdown editor component with various features, including source and preview modes, and no runtime dependencies. It's still young and has a safety net with 951 Playwright checks and differential tests.

How My Images Are Dithered

209 surprisetalk 2026-07-25 11:10:20 UTC dead.garden Llama Share 73

The user describes their method of dithering images using imagemagick to create a printed image effect, which involves splitting the image into four colors, scaling and inverting them, and overlaying them to create a grid-like pattern. This method is computationally expensive and may not reduce file size, but can create a unique and visually appealing effect.

Show HN: GeoChess – open-source geography strategy game

4 spider-hand 2026-07-25 22:10:20 UTC geochess.org Full Share 9

GeoChess is a fast-paced geography strategy game where you claim neighboring countries and outsmart your opponents.

Android May Soon Restrict On-Device ADB

856 shscs911 2026-07-25 07:10:20 UTC kitsumed.github.io Llama Share 402

A Google employee is considering restricting On-Device ADB connections to protect against "bad actors". This change could impact developers and users who rely on On-Device ADB for legitimate purposes.

Bringing PyTorch Monarch to AMD GPUs

58 gmays 2026-07-25 16:10:20 UTC pytorch.org Llama Share 6

PyTorch Monarch is a distributed training system that enables fault-tolerant large-scale AI training on AMD GPUs with ROCm, minimizing wasted computation and maximizing GPU utilization. It uses an actor-based runtime and supervision trees to isolate failures, allowing healthy nodes to continue training.

Show HN: Minesweeper Raycasted

11 franze 2026-07-25 20:10:20 UTC claude.ai Full Share 9

Claude is Anthropic's AI, built for problem solvers. Tackle complex challenges, analyze data, write code, and think through your hardest work.

Show HN: Yorishiro – a macOS terminal where AI agents live

24 hakumei 2026-07-25 20:10:20 UTC github.com/sktkkoo Llama Share 6

Yorishiro is a terminal that gives AI a body and presence, allowing users to interact with it in a more immersive way. It's a Presence Harness that enables users to work with AI in a more natural and engaging environment.

The Dark Night of Mathematics

144 rmdmphilosopher 2026-07-25 16:10:20 UTC kirwinhampshire.substack.com Llama Share 169

The author is experiencing a spiritual crisis due to AI's rapid advancements in mathematics, feeling that human discovery and creativity are being replaced by efficiency and automation. They fear that the emotional and spiritual aspects of mathematics are being lost, and that future generations of mathematicians will be denied the experience of discovery.

Building a Tiny 3D Renderer for a Tiny Handheld

228 g0xA52A2A 2026-07-25 07:10:20 UTC saffroncr.itch.io Llama Share 18

The user wrote a 3D software renderer for the Playdate handheld console, overcoming performance challenges by using a 16-bit reciprocal depth buffer, perspective-correct texture mapping, and dithering for a 1-bit display. The user achieved significant performance gains through compiler flags, custom assembly code, and optimization techniques, ultimately creating a playable 3D game prototype.

Kyber (YC W23) Is Hiring a Head of Engineering

0 2026-07-25 12:10:20 UTC ycombinator.com Llama Share

Kyber is building an AI-native document platform for enterprises, transforming regulatory document workflows and aiming for seamless AI template generation. They seek a hands-on Head of Engineering with expertise in AI systems, system design, and accountability to lead their engineering team.

The growing vigilante movement to knock out Flock surveillance cameras

144 bookofjoe 2026-07-25 19:10:20 UTC theguardian.com Llama Share 67

NoMark, a vigilante known as Minneapolis' Batman, has been taking down Flock Safety cameras across the US, sparking a nationwide backlash against the company's automated license plate readers. The company claims its cameras are for public safety, but critics argue they enable mass surveillance and have led to fears of law enforcement tracking people without warrants.

Spatial languages: Writing code in 2D

98 BinRoo 2026-07-25 13:10:20 UTC shukla.io Llama Share 37

The user discusses the concept of 2D programming languages and their potential to unlock new ways of thinking and problem-solving, using examples from quantum computing and other fields. They explore various 2D languages, including Befunge, Orca, Racket's #2dcond, Hexagony, ladder logic, and spreadsheets, highlighting their unique features and potential applications.

Running a 28.9M parameter LLM on an $8 microcontroller

14 boveyking 2026-07-25 19:10:20 UTC github.com/slvdev Llama Share 0

A 28.9 million parameter language model runs on an $8 ESP32-S3 microcontroller, writing text to a small screen at 9 tokens per second. The model fits due to Google's Per-Layer Embeddings, storing most parameters in slow flash and loading only needed rows.