KetchUp – Open-source SketchUp alternative built with Rust and WebGPU

https://ketchup3d.github.io/app/assets/screenshots/ketchup.jpg?v=0.6.5-r2
KetchUp is a free, open-source 3D modeling app for woodworking and furniture design. It allows users to create and edit models with various tools and features before exporting them as OBJ files or saving locally.

Unlocking any car from X brand in most of the world

https://shubs.io/content/images/2026/11/CleanShot-2026-07-24-at-09.35.19@2x.png
A security researcher collaborated with Sam Curry to test the connected car system of a major automaker, finding vulnerabilities in their OpenIDM instance. They exploited weaknesses in authentication and authorization mechanisms to gain remote access to vehicles across Australia.

I'm not convinced the AI bubble exists

https://matteoraso.github.io/images/profile.jpg
The author argues that the AI industry is not a bubble, despite concerns about its high valuation and spending. They point to companies' profitable business models and ability to pay off debt as evidence of their financial sustainability.

Chimera Vocal Synth

CHIMERA: a physically modelled voice synthesizer. Every sound comes from a simulated airway.

Declarative Dragging

https://declarative-dragging.github.io/video-poster.webp
Researchers created a system called D2, which allows users to make elements draggable by specifying future states without writing code. This declarative dragging approach enables smooth and responsive interactions in various applications, including math games and programming interfaces.

Dux: Free, open-source Wayland desktop shell with file manager and theming

https://duxlabs.dev/img/niri.svg
Dux Modular Shell is a fast, customizable file manager with features like tabs and search. It's free to use, but donations support its development and releases.

Outlook.com is rejecting email from domains without DMARC

https://mailroute.net/og-default.png
Microsoft's consumer mail service is rejecting emails from domains without a DMARC record, starting November 5, 2026. Adding a single TXT record with v=DMARC1; p=none can fix the issue and improve domain security.

Ask HN: What are you working on? (November 2026)

Sorry

Nvidia CEO Jensen Huang's letter to staff about affair

https://iprsoftwaremedia.com/219/files/202512/692f56983d6332f89cbbc58b_nvidia-logo-horiz-wht-16x9/nvidia-logo-horiz-wht-16x9_mid.png?v=44a60e3f-c4e5-4d8a-879f-ec5121ad6f4b
The writer acknowledges infidelity, hurting his family and damaging their life together, taking full responsibility and apologizing. He also commits to regaining trust with his family and earning back confidence from NVIDIA colleagues, board members, partners, and shareholders.

A Critique of GPUI

https://blog.zortax.de/images/a-critique-of-gpui/scaling-linear.png
The author questions the suitability of GPUI and egui as native desktop GUI frameworks due to their state models being dead ends for complex applications. They argue that these frameworks' inability to track reads and provide precision in updates leads to performance issues.

RIP, Harvest

The author, a self-employed contractor, expresses disappointment with Harvest's recent price increase and changes in their service. They are now considering finding a new invoicing and bookkeeping system due to concerns over the cost and lack of customer support.

The Qlobe: Rotating Quine (2010)

Google's system detected unusual traffic from your computer network, possibly due to malicious software or automated requests. Solving the CAPTCHA will allow you to continue using Google services temporarily.

Ask HN: How do you manage your AI agents' context across clients and projects?

Sorry

Ur-Nammu Founder of the Sumerian Renaissance

https://www.worldhistory.org/img/r/p/500x600/158.jpg?v=1790172332
Ur-Nammu, founder of the Third Dynasty of Ur, initiated the Sumerian Renaissance and created the oldest extant law code in the world. He ruled from circa 2112-2094 BCE and was known for his wise governance and cultural achievements.

Goldman Sachs is pulling Claude Code from its bankers and traders

https://www.thestateofai.com/media/uploads/33f913ce812c4074d207c01b6df1858a692e6bc3229dadbfcd4f56b61722a538.png
Goldman Sachs has restricted access to AI coding tools, including Anthropic's Claude Code and Microsoft's GitHub, for most traders and bankers. The bank now limits these tools to its engineers only.

Llama-modchip: 284B DeepSeek on 64GB RAM, no GPU

https://raw.githubusercontent.com/synchopate/llama-modchip/main/assets/launch_284b_64gb.gif
This project demonstrates that a 64 GB CPU can run large MoE models, such as 284B DeepSeek-V4-Flash and 30B Nemotron-3.5-A3B, at full context using zero GPUs.

When a language's creator and its owners strongly disagree [pdf]

Show HN: JavaScript web apps with WASM layout and GPU rendering in 280 KB

https://github.githubassets.com/assets/platform-4ce65ae0bf273ce2.png
Uniform is a cross-platform UI library that allows designers to implement their ideas precisely, with pixel-perfect layout, smooth animations, and customization options. It provides low-level control over the rendering process and supports various platforms including iOS, macOS, web, Windows, Linux, and Android.

Branching Beyond Leonardo: The Evolution of Tree Architecture Theory

https://blue-continuum.com/__l5e/assets-v1/91e8cc44-25f5-416e-8fa2-8e44d35684aa/leonardo-rule-of-trees-hero-lg.jpg
Leonardo da Vinci spent his final years in Amboise, France's Loire Valley, where he worked on various projects. His curiosity about the natural world led to observations on tree growth that continue to intrigue scientists and artists today.

Writing as a thinking tool

https://blogger.googleusercontent.com/img/a/AVvXsEgUV8paJsfBDCdaizCxyZLf_tgGZc_L1c6HYhST-bupV3snzItwcj-3TzIJnc20dDeTmoFeMaEHxyZpxrqsgI80le-78m0BN7QqcMGPBkhwTLTu-BaWTc0DQ9rpXsag-tonr1n-TYZXz2sRYCk7HQaB94VGFboZ8sPvIL9_mIPGhBpOqL3B_42ueVNyq9o=w393-h400
Google's system detected unusual traffic from your computer network, possibly due to malicious software or automated requests. Solving the CAPTCHA will allow you to continue using Google services temporarily.

Quasi-Logarithmic Kitchen Timer

https://substackcdn.com/image/fetch/$s_!7Ze1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35eb4d28-ad54-46fa-b384-76cc123d297d_2500x1668.jpeg
A user built a custom digital kitchen timer with an analog display and logarithmic scale for easier adjustment. The device uses a vintage meter, microcontroller, and simple electronics to provide precise timing and a clean interface.

Show HN: My compact, bio inspired distributed edge detection algorithm

https://github.githubassets.com/assets/platform-4ce65ae0bf273ce2.png
The paper introduces a novel edge detection model using harmonic contrast and oriented pooling, achieving competitive results on BRIND and BIPED datasets. It provides detailed setup instructions for training, testing, and inference with specific dataset handling and CUDA configuration guidance.

The Web Is More Than Enough, by Paul Ford

https://ftrain.com/art/uploads/aboard-newsletter/the-web-is-more-than-enough-header.png?w=1200
The author launched a web-based office suite, TinyLittleOffice.com, which gained significant attention and became the top ten on Product Hunt. The success highlights how powerful web browsers have become for app development, making it easier and cheaper to create software.

Air holes turn silicon wafers into flat UV focusing mirrors for compact optics

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Goodbye Claude, hello Pi

The author has retired Claude Code as their main coding harness due to frustrations with its features and stability. They're now using Pi, a more stable and customizable alternative that offers better performance and user experience.

How I Fight AI Brain Fry

The author shares their solution to managing multiple tasks with AI tools, using a priority queue in Git and a script that prioritizes items waiting on human judgment. This approach helps focus on one task at a time, reducing mental exhaustion and improving productivity.

Playing with the STM32MP2

https://serd.es/assets/fmc-fanout.png
The author has been working on a project using the STM32MP2 microcontroller, which they found to have a silicon bug in its Resource Isolation Slave unit (RISAF) that allows for potential TrustZone bypass. This bug can be exploited by sending 32-bit read transactions to the PCIe configuration and BAR address spaces, resulting in all-zero readbacks instead of actual values. The author has ...

Show HN: Flide: Make Jev-like decision models up to 9.5x faster

https://github.githubassets.com/assets/platform-4ce65ae0bf273ce2.png
Flide accelerates decision inference with exact state forking, up to 9.5x faster than vLLM and SGLang. It serves Jev-style models via /v1/systemone API, supporting image input and multiple model families.

JIT bitmap text rendering for microcontrollers

https://linebender.org/blog/jit-bitmap-text/textdemo.png
The author has developed a text rendering technique for the RP2350 microcontroller board, using bitmap fonts and a "just-in-time" (JIT) compiler to generate optimized code. The JIT compiler runs under 100µs before scanout of the video line, making it suitable for real-time applications like racing-the-beam rendering.

Claude Code's "Don't Ask Again" exposes passwords in 1,122 public GitHub files

Apiiro is a control plane for agentic development security, offering various solutions to protect AI environments. It provides tools such as Guardian Agent and Auto Fix to secure agentic development.