Livenerf: Has Opus 5.5 been nerfed yet?

https://raw.githubusercontent.com/ninjahawk/livenerf/main/media/livenerf.svg
Livenerf is a benchmark designed to detect whether a frontier model gets worse after launch, using Claude Opus 5.5 as the test subject. It measures drift statistically over thousands of samples and provides detailed statistics on accuracy changes and output token counts.

U.S. postal inspectors shut down website selling counterfeit postage labels

https://postalemployeenetwork.com/news/wp-content/uploads/2026/03/USPIS-small-150x150.jpg
US Postal Inspection Service seized an internet domain for operating a counterfeit website selling over 5 million fake USPS postage labels, resulting in $126 million losses. A Pakistani national, Faheem Akram, is charged with conspiracy and wire fraud related to the scheme.

Vermont replacing power plants with home batteries

https://ichef.bbci.co.uk/images/ic/480xn/p0pczkzt.jpg.webp
Vermont's Green Mountain Power has implemented a home battery system, providing over 5,500 homes with energy security during power outages. The virtual power plant is the largest source of power in the state and aims to eliminate all outages by 2030.

America.gov

GPT 6.1 Sol: Near-Astra intelligence for a fifth of the price

https://images.ctfassets.net/kftzwdyauwt9/68RU4PW9KL2Hk5fJOJiO7R/95058fa69ccb300b4c326cfdc057ac6e/desktop-transparent.png?w=3840&q=90&fm=webp
GPT-6.1 Sol is a new upgrade to GPT-6 Sol, offering improved performance and cost savings for everyday work tasks. It matches GPT-6 Astra's intelligence at one-fifth of its standard input and output token prices, delivering substantial improvements across complex professional tasks.

Show HN: Real-time Solar System with 526k asteroids and all tracked satellites

Тяни — вращать, колесо — приблизить, клик — карточка и орбита, двойной клик — лететь к телу. WASD — полёт, R/F — вверх/вниз, Q/E и стрелки — поворот, Shift — быстрее. Клик по названию группы — подсветить, 👁 — орбиты

I Turned a DirecTV HR54-700 into a Standalone Jellyfin Box

A user successfully installed Jellyfin on a DIRECTV HR54-700 Genie DVR, allowing for standalone playback of media without the need for a helper PC. The modified image boots and connects to Jellyfin, playing media through the receiver's Broadcom decoder and HDMI output.

When oil prices spike, where does the money go?

https://images.theconversation.com/files/730247/original/file-20260415-71-kc4tq8.jpg?ixlib=rb-4.1.1&q=45&auto=format&w=754&fit=clip
Global oil prices surged after the US and Israel attacked Iran, affecting products made from oil worldwide. The increased price benefits companies, governments, and shareholders in various regions, including Saudi Arabia's government finances and US-based oil companies' profits.

How Delhi cut electricity loss from 50 to 5 percent

https://spectrum.ieee.org/media-library/an-elaborate-building-with-domed-roof-brightly-lit-at-night.jpg?id=67825102&width=980&quality=100
The author recounts a common scene in 2002 Delhi where frequent power outages plagued the city, causing chaos and economic losses. However, over the past quarter century, Delhi's grid has transformed into a reliable system with minimal power losses.

Needed 1+1, built a functional programming language

https://hereticpleb.vercel.app/og-image.jpg
The author implemented a binary tree evaluator in C, using closures to represent user-defined functions and an arena allocator to manage memory. The evaluator uses a mark-and-sweep garbage collector to reduce memory usage.

PS5 Relapse Exploit

https://opengraph.githubassets.com/8a313189af529e6bb54ee3386a5a181751adcced90279d7ec8237ac477954983/ntfargo/Relapse-Exploit
The project involves exploiting vulnerabilities in Webkit and kernel stages for educational research, using payloads stored in a specific directory and listening on port 9021. It warns users to use the software responsibly and at their own risk, as it may cause system instability or data loss.

NAND-16: a computer built from 277,248 NAND gates

https://somethingbig.ai/computer/og.png
A 16-bit computer built from 277,248 NAND gates. CPU, memory, OS and Tetris, all running on the gates in your browser. Zoom in and watch the signals flow.

Language models for text classification: From bag-of-words to Jev

https://substackcdn.com/image/fetch/$s_!0Q-x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa5481509-dd15-42bf-9ce0-29a292276016_6461x3353.png
The Jev AI model has gained popularity for its ability to classify tasks efficiently and accurately, making it a viable alternative to more expensive models like GPT-6. It achieves this through a unique training method called Reinforcement Learning for Calibrated Decisions (RLCD), which enables fast and cost-effective decision-making across various domains.

We’re forgetting what darkness feels like

https://i.guim.co.uk/img/media/0d7db760638867c2e64a657cd7408dcd02a8af1f/519_0_5184_4148/master/5184.jpg?width=465&dpr=1&s=none&crop=none
Cities regulating outdoor lighting could improve the environment for all living creatures by reducing light pollution. Implementing rules and enforcement around light brightness, direction, and placement can help preserve darkness in urban areas.

Backblaze drive stats for Q2 2026

https://www.backblaze.com/blog/wp-content/uploads/2026/09/Q2-2026-Drive-Stats-Blog-Header-1440x820-1-1024x583.png
Backblaze's Q2 2026 Drive Stats report tracks annualized failure rates, model performance, and emerging technologies. The quarterly AFR is 1.73%, with no new drive models released this quarter but deployment concentrated in the 20TB+ range.

Phyllotaxis: An audio-reactive LED display

https://jagi.studio/images/art/phyllotaxis_1.jpeg
The author created a cellular LED matrix inspired by phyllotaxis, a pattern found in nature, and programmed it to react dynamically to sound using an STM32 board. The project evolved into an interactive installation at Recurse Center, featuring a website for attendees to upload sketches and games.

Show HN: A working 3D model of an Enigma machine

https://enigma.design/image/comms-room.jpg
The German military used Enigma during WWII to send encrypted messages, but Polish and others cracked its code. The machine had a left rotor with water-soluble ink sheets that were tightly guarded secrets.

Commodore 64: Mercenary

Tcl/Tk 9.1

https://www.tcl-lang.org/images/Tcl9.png
Tcl/Tk 9.1.0 is the current development work on Tcl and Tk, aiming toward stable releases in September 2026. They add new features and interfaces to the foundation of Tcl/Tk 9.0. About this Site | [email protected] Home | About Tcl/Tk | Software | Core Development | Community | Documentation

Show HN: NSL – WSL for Linux

NSL provides a Linux host with persistent machines, similar to WSL on Windows. It offers isolated and non-isolated modes for running Linux distributions like Debian, Ubuntu, and Fedora.

Ask HN: What are you reading?

The user is currently reading various books, including sci-fi and fantasy novels, historical non-fiction, and philosophical texts. They are also watching TV shows like Reacher S1 and Deadwood.

A Staff Engineer's Guide to Inventing Work

Platform teams invent work by reading signals from systems, users, organization, and industry. They analyze these signals to identify areas for improvement and prioritize new projects.

Deser: Rethinking Rust Serialization

https://lucumr.pocoo.org/social/2026-09-29-deser-social.png
The author is comparing Serde, a popular serialization library for Rust, with Deser, an alternative design that aims to address some of Serde's limitations. Deser has better support for untrusted input and extensible data models.

Jeeves. Reasoning improves Jev-like decision models

https://raw.githubusercontent.com/PostHog/jeeves/master/assets/smug.png
A Jeeves model with a Qwen3.5-9B decision model, LoRA, and pointer head outperforms Kev-9B and Jev on test data without thinking, achieving 0.889 accuracy on unseen data. The model can be sped up by truncating chain length or using a drafter to reason before deciding.

Everybody’s home. No one’s coming over

https://substackcdn.com/image/fetch/$s_!Hczb!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fefc21223-6d44-45bb-84be-7a80c50acc8a_2014x1332.png
Americans have seen a significant decline in socializing over the past few decades, with hosting dinner parties and attending community events decreasing by 70% since 1975. This decline is attributed to various factors, including increased busyness due to work and parenting responsibilities, decreased leisure time, and the rise of solo activities like watching TV or exercising.

How our vibe coded website looks like a designer made it

https://railcode.dev/blog/vibe-coded-website/cover.jpg
A tale about how coding agents are actually making me more and more interested in design

Stuck in the Suez Canal – the short version (2021)

Dots: Always-on agents

https://images.ctfassets.net/kftzwdyauwt9/1xROyxcQu9wVqdHbbOjetz/4598e195e1e8acb11b66dd7f340fde12/introducing-dots-carousel-feedback.png?w=3840&q=90&fm=webp
Dots are AI-powered agents that assist users with tasks, learn from feedback and adapt to their needs. They can connect to various apps, work independently or in teams, and provide 24/7 support for ambitious projects.

Virus Stole a Human Gene and Won't Let Go of It

Scientists have discovered a virus that carries a human gene from 100,000 years ago and may use it to infect humans. The virus can steal genes from its host cells and incorporate them into new viruses, potentially posing health risks.

Sustainable energy without the hot air (2008)

https://www.withouthotair.com/images/NewCover09d-2.png