OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/Dutch_standalone.png
OpenCiv3 is an open-source, cross-platform reimagining of Civilization III with modern graphics and mod capabilities. It's currently in early pre-alpha state with a playable game but lacking many mechanics and late-game content.

The Waymo World Model

https://images.ctfassets.net/7ijaobx36mtm/2S3Bfbzy16Vo5uHU5kQkFC/05bc9c945a8908eae6d69cb7ead4093e/preview.png?w=420&
Waymo introduces the Waymo World Model, a generative model for hyper-realistic autonomous driving simulation. It leverages Google DeepMind's Genie 3 to simulate rare events and enhance road safety.

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/hubfs/geo_cover.webp
Floe automatically rewrites spatial queries into set operations on H3 cells for dramatic speedup. This approach reduces complexity from quadratic to linear by using parallel hash joins on compact keys.

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://opengraph.githubassets.com/e5e6190b1f7cea385d4286d115a4e626223fc5ef22773c10490dc421d13bcab7/pydantic/monty
Monty is a Python interpreter for safely running LLM generated code with fast startup times and runtime performance similar to CPython. It allows for type checking, resource tracking, and snapshotting of execution state.

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://camo.githubusercontent.com/f9645483c92e8eb33557ff954e1f0bedcc64f6cb11587012aa4903117895f428/68747470733a2f2f696d672e796f75747562652e636f6d2f76692f776c4473615167574361492f6d617872657364656661756c742e6a7067
User created BreezyBox, a mini-shell for ESP32-S3, with vterm, CWD tracking, and app installer. It's a lightweight alternative to full OS, ideal for hobby makers and those who love small, elegant tech.

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com/_astro/hero_2.0smouW7w.png
Vecti is a collaborative UX design tool that allows teams to edit and review designs simultaneously with seamless asset sharing. It offers a free plan, pay-per-editor pricing, and features like high-performance rendering and intuitive interface.

Dark Alley Mathematics

You are given a mathematical problem to solve in a dark alley at night by a hooded figure with a gun. The problem is to find the probability that the circumcircle of three points chosen independently and uniformly at random from the interior of a unit circle is entirely contained within the unit circle. You transform the problem into a new coordinate system and calculate the Jacobian ...

Microsoft open-sources LiteBox, a security-focused library OS

https://raw.githubusercontent.com/microsoft/litebox/main/.figures/litebox.svg
LiteBox is a sandboxing library OS that reduces attack surface by cutting down the interface to the host. It provides a flexible interface for various use-cases and platforms.

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/screenshots/recovery-1.png
User created a tool to securely share files with friends using Shamir's Secret Sharing, allowing any 3 friends to recover the file together. The tool provides a simple, self-contained way for friends to collaborate in file recovery.

Sheldon Brown's Bicycle Technical Info

If you would like to make a link or bookmark to this page, the URL is: https://www.sheldonbrown.com/index.html Last Updated: by John Allen

Hackers (1995) Animated Experience

PC Floppy Copy Protection: Vault Prolok

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Vault Corporation developed Prolok, a copy-protection method that used damaged disk surfaces to prevent software piracy, but it was eventually bypassed by anti-Prolok utilities and led to a lawsuit that set a precedent in copyright case law. Vault's reputation was severely damaged after announcing Prolok Plus, a product that could potentially erase or infect users' computers, leading to the ...

An Update on Heroku

https://www.heroku.com/wp-content/uploads/2025/08/heroku-webinar-videocall-e1754686084799.png
Heroku transitions to sustaining engineering model focusing on stability and security. Customers can continue using Heroku with no changes to pricing, billing, or functionality.

Show HN: ARM64 Android Dev Kit

https://raw.githubusercontent.com/denuoweb/ARM64-ADK/master/docs/ARM64.gif
This is a GUI-first, multi-service gRPC scaffold for Android DevKit style workflow with a thin GTK UI and CLI clients. It supports ARM64-first Android development tooling with features like job state streaming, toolchain catalog, and run history storage.

Why I Joined OpenAI

https://www.brendangregg.com/blog/images/2026/chatgpt_orac_01.png
The author joined OpenAI to work on ChatGPT performance, driven by the need to save costs and the planet through datacenter performance engineering. They were drawn to OpenAI after seeing everyday people's enthusiastic use of ChatGPT, including their hairstylist.

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://opengraph.githubassets.com/810e9f059ad38f6509f8780a62964de39fb11e8c53c29ea290f4aeed5828f059/phreda4/r3
R3forth is a minimalist programming language and environment with a lightweight core and native ambitions for speed. It offers a flexible development loop and a rich ecosystem with a powerful suite of libraries.

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/sites/default/files/styles/press_photo/public/Baby_Elephant_Calf.jpg?itok=USxf6yOV
The Smithsonian's National Zoo welcomed an Asian elephant calf born to 12-year-old mother Nhi Linh and 44-year-old father Spike. The calf is the first offspring for Nhi Linh and will help strengthen the genetic diversity of the Asian elephant population.

How to effectively write quality code with AI

To work effectively with an AI system, document project requirements, specifications, and architecture in detail, including coding standards, best practices, and design patterns. Use standardized formats and visual aids to communicate complex structures and workflows, and develop efficient debug systems to simplify the process for the AI to identify and resolve code issues.

Delimited Continuations vs. Lwt for Threads

MirageOS is a fully event-driven system, with no support for conventional preemptive threads. Instead, programs are woken by events such as incoming network packets, and event callbacks execute until they themselves need to block (due to I/O or timers) or complete their task. Event-driven systems are simple to implement, scalable to lots of network clients, and very hip due to frameworks like ...

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

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A DevOps engineer left their job after five years to become a Solutions Engineer at Infisical, where they talk to people daily, learn new things, and solve problems. This role combines technical skills with human interaction, providing a sense of fulfillment and challenge.

Introducing the Developer Knowledge API and MCP Server

https://storage.googleapis.com/gweb-developer-goog-blog-assets/images/Gemini_Generated_Image_yujtz0yujtz0yujt.original.png
Google announced the public preview of the Developer Knowledge API and Model Context Protocol (MCP) server for accessing official developer documentation. These tools provide a machine-readable gateway to Google's documentation, enabling AI assistants to stay current with the latest releases.

Learning from context is harder than we thought

https://hy-model-ap-prod-1258344703.cos.ap-guangzhou.myqcloud.com/llm-blog/default/68558e8d/2026020317325150_35d45a7b64f8fdc190e182f83a22d697.png?q-sign-algorithm=sha1&q-ak=AKIDRl074nOsGdJ9zjMsCRWP3ShmgS3VtX4S&q-sign-time=1770111173;2085471173&q-key-time=1770111173;2085471173&q-header-list=&q-url-param-list=&q-signature=5991c589114c85f95eed08b68a0e4315d7b90590
Language models are not yet reliable context learners, failing on most tasks despite having access to all required information. Current models rely on parametric knowledge and struggle with inductive reasoning, context length, and complexity.

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/2f09e8566b1497158907.png
User is learning about neural networks from basics, focusing on visualization to understand how they work. They explain a simple use case of recognizing handwritten numbers using neural networks with input, processing, and output.

I now assume that all ads on Apple news are scams

https://i0.wp.com/kirkville.com/wp-content/uploads/2026/02/IMG_0349.jpeg?resize=834%2C615&ssl=1
Apple partnered with Taboola to serve ads in Apple News, but users are seeing scam ads that look like they were generated by AI. The ads are often from recently registered domains, raising concerns about Apple's and Taboola's ad vetting process.

FORTH? Really!?

The user suggests using FORTH and associative languages for transformer architectures, allowing local edits and efficient generation. They benchmarked prefix and postfix notations on parity trees, finding postfix outperforms prefix and Opus outperforms Haiku.

Evaluating and mitigating the growing risk of LLM-discovered 0-days

Researchers at Claude have released Opus 4.6, an AI model that can find high-severity vulnerabilities in code at scale. The model can read and reason about code like a human researcher.

I'm going to cure my girlfriend's brain tumor

https://substackcdn.com/image/fetch/$s_!Omv_!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98cad66c-adf3-46aa-86a7-b4dc2ad53d15_1536x1647.jpeg
Amy had a brain tumor and underwent surgery, but her prolactin levels remained high, leading to ongoing uncertainty and treatment. The author, her partner, is now using AI to research and potentially cure her tumor, driven by his love and determination to help her.

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://circlemind.mintlify.app/mintlify-assets/_next/image?url=%2F_mintlify%2Fapi%2Fog%3Fdivision%3DCLI%2BBrowser%26title%3DOverview%26description%3DGive%2Byour%2BAI%2Bagent%2Ba%2Bbrowser%2Bthat%2Bactually%2Bworks%26logoLight%3Dhttps%253A%252F%252Fmintcdn.com%252Fcirclemind%252Fk6UDxzmXp06guyWp%252Flogo%252Flight.svg%253Ffit%253Dmax%2526auto%253Dformat%2526n%253Dk6UDxzmXp06guyWp%2526q%253D85%2526s%253D5ceecd1c16c736ee161ef138a78c1ad2%26logoDark%3Dhttps%253A%252F%252Fmintcdn.com%252Fcirclemind%252Fk6UDxzmXp06guyWp%252Flogo%252Fdark.svg%253Ffit%253Dmax%2526auto%253Dformat%2526n%253Dk6UDxzmXp06guyWp%2526q%253D85%2526s%253D09830d7ae7bc8f8a427985ad70b72370%26primaryColor%3D%25230081ff%26lightColor%3D%25230081ff%26darkColor%3D%25230081ff%26backgroundLight%3D%2523ffffff%26backgroundDark%3D%2523090b10&w=1200&q=100
Smooth CLI is a browser for AI agents that uses a natural language interface to simplify tasks. It allows agents to focus on goals rather than low-level actions like clicking buttons.

How virtual textures work

https://www.shlom.dev/002/crash_tomb_raider_psx.webp
Virtual texturing is a technique that allows massive textures to be rendered in real-time by only loading the parts of the texture that are currently visible on screen, reducing memory and bandwidth usage. This technique is effective in scenarios where texture size vastly exceeds GPU memory, but is not a general upgrade path and is typically used in narrow, data-dominated scenarios.

WebView performance significantly slower than PWA

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