Producing ammonia and fertiliser using wind power in Morris, Minnesota

https://ammoniaenergy.org/wp-content/uploads/2026/07/uminn-morris-640x275.png
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.

Stolen Buttons

https://images.ctfassets.net/7k34737a5krf/4YwinRclOQQw2uiKPSSyy0/ce9fa4fffeba5c026667e8cc8d286dcf/stolen-buttons-og.jpg?fm=jpg&w=1200&h=630&fit=fill&q=65
Every website I visit, I “steal” a button from it. Check out my stash!

Open-weight AI is having its Kubernetes moment

https://tobi.knaup.me/assets/img/blog/2026-07-25-open-weight-ai-is-having-its-kubernetes-moment.730px.jpeg
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.

Android May Soon Restrict On-Device ADB

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

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: Proxmox -> Share your host's Bluetooth with a VM over the network

https://raw.githubusercontent.com/lucid-fabrics/proxmox-bluetooth/main/docs/img/controller-connected.jpg
TL;DR: Bluetooth passthrough to a Proxmox VM fails for Intel onboard chips (BE200, AX210, AX211 - by hardware design, no setting fixes it) and is unreliable on gaming distros like ChimeraOS and Bazzite. This tool shares the host's Bluetooth with the VM over the network instead - two commands, works with any chip Linux supports, survives reboots. Controllers, headphones, and Home Assistant ...

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

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.

How My Images Are Dithered

https://dead.garden/img/icon.png
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.

Bringing PyTorch Monarch to AMD GPUs

https://pytorch.org/wp-content/uploads/2026/07/figure-1.png
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.

Bitchat is now on Radicle

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

The Fedora 45 Sausage Factory

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 ...

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

GDID Windows – Cut the tracker that follows you even under VPN

https://korben.info/desactiver-gdid-windows/desactiver-gdid-windows-2.png
The FBI caught a Scattered Spider member in April 2026 using a unique identifier called the GDID, which is a 64-bit PUID tied to a Windows user's account. A script has been created to disable the services that report the GDID to Microsoft, but it does not erase the existing identifier and is not a foolproof method for complete anonymity.

Spatial languages: Writing code in 2D

https://shukla.io/blog/2026-07/coop.jpg
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.

Building a Tiny 3D Renderer for a Tiny Handheld

https://img.itch.zone/aW1nLzI3NDkzMzQzLnBuZw==/original/g05n0c.png
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.

Rauno's Field Notes #2

https://rauno.me/_next/image?url=%2F_next%2Fstatic%2Fmedia%2F1.590fce23.png&w=3840&q=75
The user optimized the project card layout by reducing vertical space, omitting unnecessary data, and implementing a context menu. They also experimented with widgets in the corner, eventually settling on a two-row layout with visually distinct characters to improve usability.

The Dark Night of Mathematics

https://substackcdn.com/image/youtube/w_728,c_limit/J-Orh6UENWY
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.

The growing vigilante movement to knock out Flock surveillance cameras

https://i.guim.co.uk/img/media/d25c4fffcd64256a54854e84129313b6929bc0a3/0_0_7886_5258/master/7886.jpg?width=445&dpr=1&s=none&crop=none
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.

Pkgxray – inspect what gets installed, not what executes

https://raw.githubusercontent.com/adamsjack711-ux/pkgxray/main/docs/demo/hero.gif
Use local, zero-dependency package static analysis to inspect npm packages and Model Context Protocol (MCP) servers before installation or connection. pkgxray reports cited SAFE, REVIEW, or BLOCK evidence without executing package code during normal scans. Static analysis · Supply-chain intelligence · Prompt-injection detection · MCP security · SAFE / REVIEW / BLOCK Real runs: guard clears ...

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

https://webmars.nfiles.top/assets/images/screenshot-main.png
webMARS is a browser-based MIPS assembler and simulator inspired by MARS 4.5. Write, assemble and run MIPS code directly in your browser.

Kyber (YC W23) Is Hiring a Head of Engineering

https://bookface-images.s3.amazonaws.com/small_logos/3004c4a72b716a80763763b95bf3e212c448756e.png
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 Hitler Salute Was Never German

https://i0.wp.com/warcommons.com/wp-content/uploads/2026/07/Raising_a_flag_over_the_Reichstag_-_Restoration.webp?fit=300%2C217&ssl=1
It began in ancient Rome. Mussolini adopted it. Hitler copied it, and then lied about where it came from. The Nazi salute. As soon as you look up anything at all about World War II, you’re bound to come across the so-called Nazi salute within a few minutes, or even seconds. Although today it primarily symbolizes Nazism and reverence for Hitler, the Nazis were not actually the ones who ...

The Silurian Hypothesis (2020)

The website is using Cloudflare security and blocked my action, possibly due to a trigger like a certain word or SQL command. I was trying to perform an action when this page came up, and the Cloudflare Ray ID is needed to report the issue to the site owner.

MouthPad: A Tongue-Controlled Touchpad

https://www.augmental.tech/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fmouthpad-hero-7.8dd2cae0.png&w=3840&q=95
MouthPad is a custom-fit, hands-free device that translates tongue and head movements into cursor control, clicks, and scrolling for computer use. It's designed for people with mobility challenges and is available for purchase in the United States with a 1-year limited warranty.

Engineering management after the cost of code collapsed

https://karimjedda.com/content/images/size/w1200/2026/07/meowtivate.jpeg
The author, a director of engineering, challenges outdated management practices that assume the cost of producing code is high, now that LLMs have collapsed this cost. The author argues that management should focus on outcomes, accountability, and judgment, rather than code volume, and that the org chart should reflect who signs off on decisions, not who produces code.

NYC Apartment Aquaponics

https://erinmurphy.dev/_astro/sketch.CpGT4g9z_Z1Ca8CY.webp
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.

Scanwheel is a drum style mechanical television you can build yourself

https://raw.githubusercontent.com/AncientJames/Scanwheel/main/images/scanwheel01.jpg
The device features a 5-window scanner with high-resolution LEDs, driven by a Raspberry Pi Pico, and uses a stepper motor for precise movement. The device requires custom 3D printed parts, including a base, drum, and lid, and uses Micropython 1.28 for its software.

Charles Ross spent 50 yrs building Star Axis naked-eye observatory in New Mexico

Charles Ross, an 88-year-old artist, is creating a monumental earthwork called "Star Axis" in eastern New Mexico, inspired by celestial alignments and ancient cultures. He received 400 acres of land from a rancher after building a bridge to access the rancher's hacienda.

Teardown: The BMW / Harman IDC23H Infotainment Unit (B423)

https://images.squarespace-cdn.com/content/v1/63a78278d51d8857cba58bca/8c572cfc-24a1-4810-bd36-a1ed58aa674f/nichijou_idc23h_header.png
The BMW IDC23H infotainment unit, manufactured by Harman Becker, features a joint venture design with Garmin and presents new connectivity options such as DCS and DFE connections. The unit's architecture is similar to the previous MGU22, with a Qualcomm Snapdragon SA8155P module, Infineon CYT3BB microcontroller, and 128 GB of Micron UFS v3.1 storage.