A 77-year-old Republican man is staging a solo protest against Flock cameras

69 UmYeahNo 2026-07-25 21:32:52 UTC cltampa.com Llama Share 25

Carl Gunn protested Flock cameras in St. Petersburg, Florida, with a sign saying "DOWN WITH FLOCK CAMERAS" to protect his privacy. He was joined by supporters and questioned by police, highlighting concerns over mass surveillance and constitutional rights.

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

21 rbanffy 2026-07-25 21:49:52 UTC spectrum.ieee.org Llama Share 0

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.

The new rules of context engineering for Claude 5 generation models

62 mellosouls 2026-07-25 21:17:52 UTC claude.com Llama Share 25

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.

Did They Ghost You?

62 mooreds 2026-07-25 21:17:52 UTC didtheyghostyou.com Llama Share 23

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.

Fly.io CEO Kurt Mackey is stepping down

69 subarctic 2026-07-25 21:17:52 UTC fly.io Llama Share 22

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.

Stolen Buttons

487 Gecko4072 2026-07-25 14:17:52 UTC anatolyzenkov.com Full Share 113

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

Producing ammonia and fertiliser using wind power in Morris, Minnesota

63 gritzko 2026-07-25 20:17:52 UTC ammoniaenergy.org Llama Share 25

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.

Android May Soon Restrict On-Device ADB

841 shscs911 2026-07-25 07:17:52 UTC kitsumed.github.io Llama Share 399

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.

Show HN: I made some transistor animations

86 stunningllama 2026-07-25 18:17:52 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.

Multicast TV Distribution on My Home Network

10 mrngm 2026-07-25 21:17:52 UTC apalrd.net Llama Share 1

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.

Open-weight AI is having its Kubernetes moment

272 tknaup 2026-07-25 15:17:52 UTC tobi.knaup.me Llama Share 212

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.

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

80 jsax 2026-07-25 18:17:52 UTC brolly.sh Llama Share 28

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.

Memory Safety Absolutists

43 drogus 2026-07-25 18:17:52 UTC itsallaboutthebit.com Llama Share 39

The author discusses the recent criticism of Rust's memory safety, suggesting it's disingenuous and based on fanaticism. They argue that Rust minimizes memory safety issues and that Fil-C, a new way to make C and C++ code memory safe, has trade-offs that make it unsuitable for all projects.

Bitchat is now on Radicle

185 h1watt 2026-07-25 14:17:52 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

226 hn_acker 2026-07-25 10:17:52 UTC news.mongabay.com Full Share 74

How My Images Are Dithered

200 surprisetalk 2026-07-25 11:17:52 UTC dead.garden Llama Share 70

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.

SIMD for Collision

5 birdculture 2026-07-25 21:17:52 UTC box2d.org Prefix Share 1

In a previous post SIMD Matters I discussed the big wins I got from graph coloring to make the contact solver faster. That same approach exists in Box3D. I like to call this approach “wide SIMD”. The idea is to process multiple work units at the same time. In the contact solver this means solving four contact points at the same time. This is different from “narrow SIMD” where a 3-vector (xyz) ...

Who does Anubis actually stop?

10 type0 2026-07-25 21:17:52 UTC fzakaria.com Llama Share 4

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.

Bringing PyTorch Monarch to AMD GPUs

52 gmays 2026-07-25 16:17:52 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: Yorishiro – a macOS terminal where AI agents live

18 hakumei 2026-07-25 20:17:52 UTC github.com/sktkkoo Llama Share 3

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 growing vigilante movement to knock out Flock surveillance cameras

121 bookofjoe 2026-07-25 19:17:52 UTC theguardian.com Llama Share 49

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.

The Dark Night of Mathematics

131 rmdmphilosopher 2026-07-25 16:17:52 UTC kirwinhampshire.substack.com Llama Share 149

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

221 g0xA52A2A 2026-07-25 07:17:52 UTC saffroncr.itch.io Llama Share 17

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.

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

8 _boffin_ 2026-07-25 21:17:52 UTC news.ycombinator.com Prefix Share 4

I like writing Markdown, but do not like writing it inside a plain textarea. It renders Markdown while you write, but Markdown remains the value you read, store, and submit. It also has source, split, and preview modes, along with slash commands, tables, task lists, code blocks, native form support, and an API for adding your own controls. There are no runtime dependencies and no required ...

Spatial languages: Writing code in 2D

95 BinRoo 2026-07-25 13:17:52 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.

The Fedora 45 Sausage Factory

125 6581 2026-07-25 11:17:52 UTC supakeen.com Llama Share 35

Fedora's package creation process involves Git repositories, Koji build system, Bodhi update management, and Pungi compose orchestrator, which work together to produce ISOs, cloud images, and other artifacts. The process includes steps like package building, tagging, and testing, with tools like fedpkg, Koji, Bodhi, and Pungi playing key roles in managing the workflow and ensuring ...

Kyber (YC W23) Is Hiring a Head of Engineering

0 2026-07-25 12:17:52 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.

Tile's security is so bad it's a feature for stalkers

111 sambellll 2026-07-25 19:17:52 UTC blog.adafruit.com Full Share 36

This website uses a security service to protect against malicious bots. This page is displayed while the website verifies you are not a bot.

My web version of Mars MIPS, now has built-in C compiler

30 nenepbl 2026-07-25 14:17:52 UTC webmars.nfiles.top Full Share 6

webMARS is a browser-based MIPS assembler and simulator inspired by MARS 4.5. Write, assemble and run MIPS code directly in your browser.

NYC Apartment Aquaponics

185 mm1119 2026-07-25 07:17:52 UTC erinmurphy.dev Llama Share 76

The user and their boyfriend created a 20-gallon aquaponics system in their NYC apartment using a media-based continuous-flow system with a vertical setup, growing leafy greens and herbs. They share their experiences and lessons learned, including the importance of cycling, not overfeeding, and using a stable water and nutrient level for the fish, to help others replicate their setup.