Show HN: HackerBooks – HackerTube, but for books mentioned on HN

Browse thousands of books mentioned in Hacker News comments, 2007–2026. Ranked by how many different people mention them.

F/OSS Comics #13: BSD Unix, Part 3 – The Beginning of BSD Unix

https://fosscomics.com/posts/13.%20BSD%20Unix%20Part%203%20-%20The%20Beginning%20of%20BSD%20Unix/images/free-speech.png
Berkeley Software Distribution (BSD) was created by Bill Joy in 1977, bundling Unix with other software and sharing it freely. This approach helped spread Unix to research institutions and universities, despite antitrust agreements limiting commercial sales of the operating system.

Postgres 19 is late because so many more bugs are being found now

PostgreSQL's release timing has become unpredictable due to the ease of finding bugs with Large Language Models (LLMs), causing delays in major releases. The project is prioritizing quality over schedule, but this trend may impact long-term innovation and bug catching capabilities.
https://bear-images.sfo2.cdn.digitaloceanspaces.com/karpathy/image-2.webp
The user created a YouTube clone called Hackertube.org using Opus 5.5, filtering comments from Hacker News to find recommended videos. The site provides personalized ForYou recommendations without requiring user accounts or storing state in local browser sessions.

Nibnib: Image compression with extreme decompression speed

https://raw.githubusercontent.com/raphlinus/nibnib/main/images/algorithm.png
The Nibnib image format is a simple, 4bpp compression technique that uses a palette to store delta values rather than absolute colors. It achieves high quality by decoding two pixels at a time and using error diffusion with a quantized palette.

Ask HN: Which TV do you recommend for privacy?

Sorry

Mystery of 60-Second Fluctuations in Power Grids Solved

https://www.fz-juelich.de/de/aktuelles/news/pressemitteilungen/2026/60-sekunden-schwankung-in-stromnetzen/img_20180428_154430-buehne.jpg/@@images/image/great
Researchers from Forschungszentrum Jülich found that large-scale battery storage systems cause brief spikes in electricity demand every minute due to regular power checks. These fluctuations can contribute to turbine wear and tear, particularly in hydroelectric power stations.

Tips for more effective fuzz testing with AFL++

The article discusses AFL++ for fuzz testing C and C++ programs, revealing defects missed by previous fuzz testing. It provides tips on how to pick a program, including using persistent mode and customizing ASan options.

OccupySaaS

https://occupysaas.com/assets/img/logo.png
OccupySaaS is a protest movement against cloud platforms, aiming to build open-source, self-hosted alternatives using AI and public documentation. The movement seeks to empower individuals by providing clean-room replacements for industry-standard tools without per-seat taxes or proprietary APIs.

Keeping Up Appearances – The women taking over the funeral industry

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The article discusses the shift in mortuary science towards female-dominated professions, citing a growing number of women entering the field. This change is attributed to factors such as advances in cosmetics technology and social media's influence on young people's interests. The author explores how this trend reflects a broader cultural shift away from traditional masculine norms in ...

Trigger.dev customer environment variables exposed

https://trigger.dev/assets/bun-1-4-card-DHzzRsrt.webp
We've blocked the exploit used in this attack, but our investigation has identified exposure across a subset of organizations. We will publish updates on our status page, and you can contact us if you have any questions.

Copper – A minimal low-level programming language with OOP and generics

Copper is a programming language that I use as a replacement to C. The main differences are: Minimalism is the most important feature, the language is intended to be simple so that someone with limited brain power such as me could fully understand it. The syntax is simple, almost everything is explicit and most constructs are common.

New 3D thermal invisibility cloak makes objects disappear from infrared cameras

https://www.sciencedaily.com/images/1920/3d-printed-hybrid-aluminum-and-rubber-cloaking-device.webp
Researchers at the University of Illinois Urbana-Champaign have developed a 3D thermal invisibility cloak that can hide complex objects from infrared cameras while protecting them from extreme temperatures. The device guides heat around an object, making it appear invisible to thermal imaging from virtually any direction.

Show HN: OmniDiff – Opensource, super fast, content aware Git difftool, in Rust

https://raw.githubusercontent.com/ivankovic/omnidiff/main/assets/diff-vs-omnidiff.gif
OmniDiff is a fast and accurate diff tool that supports various file types, including code, images, fonts, and archives. It measures 4.2ms to 177ms per fixture on Intel Core i7-1370P with 32 GB RAM.

Mathematics has changed. Let's act like it

Mathematicians are unhappy with AI's impact, feeling it undervalues their work and creates a culture of "business as usual" where novelty is prioritized over understanding. The author argues that mathematicians should focus on broader programs and structural understanding rather than relying solely on AI to answer existing questions.

Proving and improving the Platonic Representation Hypothesis with JEPAs

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Models trained on different modalities converge to the same representation as they scale, according to a new theorem. This convergence is driven by "good views" of shared scenes and not just scale alone.

AI fan wikis riddled with errors are muddying the waters of games culture

https://assetsio.gnwcdn.com/gamedb-wiki-header.png?width=690&quality=85&format=jpg&dpr=3&auto=webp
The rise of AI-generated wikis is causing problems for independent game wikis, as they compete with corporate sites and flood search results with inaccurate information. This leads to frustration among players and wiki maintainers, who struggle to keep their resources updated amidst the chaos.

The AI cost of JavaScript frameworks

https://nolanlawson.com/_astro/pokemon-app.DUO5bAVN_34jQQ.webp
The author conducted a benchmark to compare the performance of various JavaScript frameworks, including Next.js, Nuxt, SvelteKit, and Angular. The results showed that most frameworks were similar in terms of development time and cost, but some were more expensive than others.

Lenovo's 'encrypted' fingerprint USB is just an unencrypted SD card in a case

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One-minute frequency disturbances from synchronization in power systems

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1038%2Fs44287-026-00334-2/MediaObjects/44287_2026_334_Fig1_HTML.png
Researchers have identified a persistent 1-minute oscillation in grid-frequency time series worldwide, which they attribute to clock-synchronized control software in digitally controlled energy devices. This signal can propagate across multiple voltage levels and contribute to wear and tear on hydropower systems.

Bidirectional charging during grid outages

The user discusses the limitations of using an electric car's battery for backup power during grid outages, citing various manufacturers' restrictions on bidirectional charging. They consider alternative options, including a smaller emergency-only battery and Enphase's planned bidirectional EV charger, but are hesitant to wait due to uncertainty about its release date.

The She-Wolves of Jülich

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Novellas with Groff

https://movq.de/blog/postings/2026-10-31/0/t/pdfinfo-wc.png.jpg
The author wrote two long stories using groff, a typesetting system, and then converted the second one to Markdown for easier editing. They used macros to format the text and created a distraction-free writing environment with Vim.

Radiation Map of the World

https://radiaverse.com/landing/device-hand.webp
RadiaCode owners share public dose rate maps with valuable information. Users can publish their recordings anonymously and interact with others on the map.

Show HN: Point your camera at a landscape to learn about its geology

https://outcrop.rocks/social-card.jpg
The Outcrop app uses augmented reality to show geologic maps of the land, providing information on rock units, age, composition and formation. It also offers additional features such as 3D globe views and satellite imagery to help users understand Earth's geological history.

Show HN: I rebuilt my old canvas 3D library as a small WebGL 2 library – phoria2

Phoria2 is a small, fast JavaScript library for 3D on the web with an easy-to-learn API. It offers various features and tools for creating charts, scenes, dashboards, and product viewers without runtime dependencies or external libraries.

Seoul Viosys begins production of rare-earth-free white light emitter

https://www.semiconductor-today.com/images/external/AES-SEMI-GAS-Semiconductor-Today.png
Seoul Viosys develops rare-earth-free white light emitter, a micro-LED chip as small as 10µm. The technology is expected to create a new $60bn market in augmented reality and AI data communications within five years.

Parchment Paper History: How We Got Paper Perfect for Baking (2019)

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Parchment paper, a key tool for baking and cooking, has its origins in ancient animal skin used for writing. The modern version was developed in the 19th century with the addition of silicone, which enhances its heat resistance and non-stick properties.

Domain hacks with unusual Unicode characters (2018)

https://shkspr.mobi/blog/wp-content/uploads/2019/05/domains.jpg
The author discovered that certain single Unicode characters can be used as valid top-level domains (TLDs) in the Domain Name System (DNS), allowing for shorter URLs. These characters, such as ℡ and .tel, are recognized by most modern browsers but not all websites.

An Italian farmer found some unknown seeds in his attic and planted them

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Claudio Grossi, an Italian farmer, discovered a 100-year-old sack of seeds that produced a unique and ancient wheat variety called "grano del miracolo" or "miracle grain." This hardy wheat has been shown to have nutritional benefits and is more resilient to droughts and extreme weather events.