Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables

https://raw.githubusercontent.com/darrylmorley/whatcable/main/docs/screenshot.png
WhatCable is a macOS menu bar app that identifies USB-C cables and their capabilities. It exposes cable information, charging diagnostics, and connected device identities via a friendly menu bar popover.

Auto Polo

https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Auto_polo_crop1.jpg/250px-Auto_polo_crop1.jpg
Auto polo was a US motorsport from 1911 to the late 1920s, featuring cars instead of horses, but was dangerous and expensive. It was popular in the US and Europe, but declined due to high costs and safety concerns.

How Mark Klein told the EFF about Room 641A [book excerpt]

You don't have permission to access "http://thereader.mitpress.mit.edu/the-whistleblower-who-uncovered-the-nsas-big-brother-machine/" on this server.

Show HN: Perfect Bluetooth MIDI for Windows

Hi HN, I'm Erwin. I built a small free open-source utility that bridges Bluetooth LE MIDI keyboards into the new Windows MIDI Services stack so any DAW or Web MIDI app can use them as if they were wired. I bought a Roland FP-90X piano partly because it had Bluetooth MIDI. On my Windows 11 PC, pairing succeeded, but my DAW couldn't see the keyboard, and notes I sent from the PC never ...

New copy of earliest poem in English, written 1,3k years ago, discovered in Rome

https://pxl-tcdie.terminalfour.net/prod01/channel_3/media/tcd/news-images/Elisabetta-Magnanti-and-Mark-Faulkner-with-the-Trinity-copy-of-Bedes-Ecclesiastical-History.-To-be-clear-this-is-not-the-manuscript-they-found-in-Rome----830X623.JPG
Researchers from Trinity College Dublin discovered a 1,300-year-old manuscript in Rome containing the first known poem in the English language, Caedmon's Hymn. The poem, praising God for creation, was composed by a cowherd from North Yorkshire after a divine visitation.

If I could make my own GitHub

The author wants to create a new forge that addresses issues with modern forges, such as enforcing pre-commit hooks, customizable PR approval, and smaller hosting units.

The Rotary Un-Smartphone

https://skysedge.com/telecom/RUSP/images/proto3/RUSPP3_Splayed_small.JPG
The Rotary Un-Smartphone is a followup to this personal project. It's a production-ready ground-up design with all new parts (yes, the rotary dial too) and many neat bells and whistles. 2 displays: Front-side OLED for caller-ID and dial entry, and back-side ePaper for contacts display Q: Do I need to know electronics? What skills are required for assembly? Can anyone build it? A: No ...

For Linux kernel vulnerabilities, there is no heads-up to distributions

CVE-2026-31431 is a Linux kernel vulnerability introduced in 2017, affecting multiple kernel versions. A workaround patch has been attached to disable the affected module.

OpenWarp

OpenWarp 是基于 Warp 开源代码的社区分支,支持自定义 OpenAI 接口和多语言。它保留 Warp 体验,允许用户控制 AI 层和凭证。

Shai-Hulud Themed Malware Found in the PyTorch Lightning AI Training Library

https://semgrep.dev/assets/people/isaac-evans.jpeg
A supply chain attack compromised the PyPI package 'lightning' versions 2.6.2 and 2.6.3, stealing credentials and attempting to poison GitHub repositories. The attack is linked to the 'mini Shai-Hulud' campaign and affects teams using lightning in their dependency tree.

Grok 4.3

https://docs.x.ai/api/og?t=eyJ0aXRsZSI6Ikdyb2sgNC4zIiwidiI6IjMiLCJzY29wZSI6ImRldmVsb3BlcnMiLCJzZWN0aW9uIjoiTW9kZWxzIGFuZCBQcmljaW5nIn0.SMidkHaGudRzuawDgM_H4n4Y3WQgd7xcEmaQjlFarcw
Learn how to use our products and services

Opus 4.7 knows the real Kelsey

https://substackcdn.com/image/fetch/$s_!q0IX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F830c09c6-06a9-47e6-8552-6ba2cbfd3da5_2121x1414.jpeg
The author is concerned that AI models like Claude Opus 4.7 can identify individuals from their writing style, even if they write anonymously. This could lead to a loss of anonymity for writers and potentially harm those who rely on it for protection.

Softmax, can you derive the Jacobian? And should you care?

https://idlemachines.co.uk/essays/figs/softmax_distribution_shift.png
Softmax is a function that maps vectors into a probability distribution. It takes an unconstrained vector and projects it onto the probability simplex, where each entry is non-negative and sums to 1.

Maladaptive Frugality

The writer realized they had maladaptive frugality, prioritizing saving over spending on essential expenses and experiences. They learned to reframe frugality as a tool, not a virtue, and focus on mindful spending to achieve a higher quality of life.

CPanel and WHM Authentication Bypass – CVE-2026-41940

https://storage.ghost.io/c/a0/dc/a0dcbbe4-0ae7-4d7e-90f7-ebbc3a0f5a84/content/images/size/w1200/2026/04/Group-8730--2-.png
A vulnerability in cPanel & WHM allows authentication bypass due to unstripped CRLF in session loading and saving. Exploiting this vulnerability can lead to unauthorized access to management planes of significant parts of the internet.

Claude Code refuses requests or charges extra if your commits mention "OpenClaw"

Something went wrong, but don’t fret — let’s give it another shot. Some privacy related extensions may cause issues on x.com. Please disable them and try again.

How an oil refinery works

https://substackcdn.com/image/fetch/$s_!AIFC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff98b1375-89f9-4b10-a92a-25faf8a82069_800x600.png
Oil refineries process crude oil into various products like gasoline, diesel, and jet fuel using distillation, cracking, and other processes. The refining process is complex and requires large industrial facilities to handle the massive volume of crude oil consumed worldwide.

I built a Game Boy emulator in F#

https://nickkossolapov.github.io/fame-boy/building-a-game-boy-emulator-in-fsharp/images/pokemon.gif
A software engineer built a working Game Boy emulator, Fame Boy, in F# after learning about computer hardware by emulating a Game Boy and using AI to write unit tests. The emulator's development involved optimizing performance, fixing issues with the PPU and APU, and learning about functional programming and domain-driven development.

Can I disable all data collection from my vehicle?

https://media.rivian.com/image/upload/f_auto,q_auto/v1695930282/rivian-com/default-riv-com-sharing-image_gjg8mw.jpg
Rivian vehicles have a core feature of vehicle connectivity that can be disabled to limit functionality. Disabling connectivity will not affect subscriptions like Connect+, but will require separate cancellation.

Canonical/Ubuntu have been under DDoS for more than 15h

Welcome to Canonical and Ubuntu Status! View active incident progress, historical component status, and subscribe to email and RSS notifications for components and incidents on the move.

Roboticist-Turned-Teacher Built a Life-Size Replica of Eniac

https://spectrum.ieee.org/media-library/man-crouches-behind-three-robots.png?id=65575461&width=1200&height=937
Tom Burick, a technology instructor at PS Academy, led his students in building a full-scale replica of the 1940s ENIAC computer for its 80th anniversary. Burick's passion for robotics and technology stems from his childhood and he now helps students with autism develop their strengths through hands-on projects.
The SIMD Quad algorithm is a new search algorithm that combines quaternary interpolation search with SIMD instructions to efficiently locate a target value in a sorted array of 16-bit unsigned integers. It outperforms binary search on both Intel and Apple platforms, with significant speedup on large arrays in cold cache scenarios.

The Hearts of the Super Nintendo (2024)

https://fabiensanglard.net/snes_hearts/resonator.webp
The Super Nintendo's components work together at the hardware level with a CLK output pin connected to a copper line spreading to most components. The console has two master clocks, one at 21.47727MHz and another at 24.576MHz, which are used to generate various clocks for the CPU, PPU, and other components.

Reverse Engineering SimTower

https://phulin.me/_astro/original.C9m_DFGt_Z1MbqzI.webp
The user attempted to reverse engineer a childhood video game, SimTower, using a large language model (LLM) to create a clean-room spec. However, the LLM struggled with complexity and verbosity of the binary, requiring a different approach.

New mechanical panoramic film camera from Jeff Bridges

https://wideluxx.com/wp-content/uploads/2026/04/a-different-way-to-see.jpg
The WideluxX is a modern swing-lens camera that captures panoramic images on 35mm film through a single continuous exposure. It preserves the character of the original system while offering a unique way to create images that reflect duration rather than a single instant.

Using a 1978 terminal in 2026 (DEC VT-100)

https://nikhiljha.com/images/vt100/vimangle.jpg
The author built a coding agent for the terminal and bought a 1978 VT-100 to test its compatibility. The VT-100's protocol is still used by modern terminals, but it has limitations, including slow speed and limited character support.

Apple Says Mac Studio and Mac Mini Will Be in Short Supply for Months

https://images.macrumors.com/t/XOXbvo5GJLRHT3n2YHtSTpZulgY=/400x0/article-new/2025/11/mac-studio-purple.jpg?lossy
Apple's Mac mini and Mac Studio are in high demand due to their AI capabilities, leading to supply chain issues and shipping delays of up to 4-5 months. Apple underestimated demand, citing a global memory chip shortage and production constraints as the main reasons for the shortage.

How we run iSCSI over the internet

https://scsipub.com/images/og.png
iSCSI is a protocol from the era when “the network” meant a rack-scale fibre channel replacement. Initiators and targets trusted each other, CHAP was optional theatre, and a packet from an initiator carried the implicit assumption “we’re on the same L2 segment.” scsipub serves iSCSI targets to arbitrary clients on the public internet. That’s a different set of assumptions. This post is the ...

Belgium stops decommissioning nuclear power plants

Belgium will nationalize its nuclear power plants, reversing a 2003 decision to phase out nuclear energy by 2025. The government aims to build new nuclear plants and reduce dependence on fossil imports.

Full-Text Search with DuckDB

The user explores DuckDB's full-text search (FTS) capabilities, comparing them to other FTS solutions like Elasticsearch and Postgres, and finds them powerful but limited. They provide a tutorial on using DuckDB's FTS extension with Python, including pre-processing email data and querying with Okapi BM25 algorithm.