Paras Chopra, VWO founder, thanks Hacker News for inspiration and users gained from a 2009 Show HN. He credits HN for his entrepreneurial journey and gratitude towards the community.
Users created a hack to make QR codes scanable from different angles by using a checkerboard mask and half-toning. This allows the code to be read even when the phone is slightly shifted.
Shubham Shah and I discovered a security vulnerability in Subaru's STARLINK connected vehicle service that gave us access to all vehicles and customer accounts in the US, Canada, and Japan. We reported the vulnerability, which was patched within 24 hours, and demonstrated how an attacker could take over a Subaru using a license plate in about 10 seconds.
The user is running multiple instances of llama-server with different model sizes and parameters. The plugin aims to provide high-quality local FIM completions on consumer-grade hardware.
A social network for trans and gender-non-conforming people is available as a free app for iOS and Android. Users share positive and personal updates, discuss mental health, and connect with others in the community.
Tailwind CSS v4.0 is a major update with improved performance, flexibility, and a reimagined configuration experience. It includes new features like native cascade layers, registered custom properties, and color-mix(), as well as simplified installation and automatic content detection.
OpenAI releases Operator, a research preview of an AI agent that can perform tasks on the web using its own browser, available to Pro users in the U.S. Operator is trained to interact with graphical user interfaces and can handle repetitive browser tasks, but is still in early stages and has limitations.
Dhruv Vidyut offers an electric conversion kit for bicycles, transforming any cycle into an eco-friendly electric vehicle. The kit provides a comfortable and efficient cycling experience on any terrain.
Seven influential papers in computer science history include Alan Turing's "Turing Machine," Claude Shannon's information theory, and Tim Berners-Lee's World Wide Web, among others, which laid the groundwork for modern computation, data storage, and global connectivity. These foundational papers, published between the 1930s and 1990s, continue to shape the development of computer science and ...
gRPC and OpenAPI are RPC interface definition languages that allow clients to access APIs using standard HTTP technologies, but gRPC hides HTTP details and provides simpler client-side programming libraries. gRPC is a good choice for new-builds and internal APIs, but OpenAPI is more suitable for public APIs and allows clients to use standard HTTP tools and technologies.
A team of 40 master-builders in northern Burgundy is building a medieval-style castle using 13th-century technology and materials. Guédelon is a unique construction site that showcases heritage craft skills and offers lessons for the 21st century.
This article introduces the basics of psychedelic graphics, assuming no prior knowledge of graphics or programming, and explains how to create colorful visuals using UV mapping and texture painting. It also covers the concept of UV coordinates, RGB colors, and how graphics are rendered on a screen, setting the stage for creating interesting visuals in part 1.
President Donald Trump's return to the White House has imposed restrictions on the National Institutes of Health, including a travel ban and communications pause. The moves have caused confusion and uncertainty among researchers, potentially delaying research and affecting career advancement.
Bun is a JavaScript and TypeScript runtime that supports building, testing, and running full-stack applications with improved Node.js compatibility and performance. Bun 1.2 introduces new features such as S3 support, SQL client, and experimental C compilation, along with performance improvements and new APIs.
A powerful starter kit for building AI-powered video applications. Built with Next.js, Remotion, and fal.ai, this toolkit simplifies the complexities of working with AI video models in the browser. This project is licensed under the MIT License - see the LICENSE file for details.
The tech industry prioritizes MVPs, but this approach often leaves products unfinished, with investors overlooking the need for polish. A more craftsmanlike approach, like game development's vertical slice, would ensure products are completed to a higher standard.
London's most central sheep is at Vauxhall City Farm, a Shetland breed. Vauxhall City Farm has multiple sheep, including a Herdwick named Daffodil and several Castlemilk Moorits.
Trae is an adaptive AI IDE that transforms how you work, collaborating with you to run faster.
The book focuses on foundational concepts of large language models, covering pre-training, generative models, prompting techniques, and alignment methods. It serves as a reference for college students, professionals, and practitioners in natural language processing and related fields.
Bunster transforms shell scripts into efficient, standalone binaries for Unix platforms by compiling them to native machine code. It aims to add features like modules, static asset embedding, and a standard library to make shell scripts more like modern programming languages.
Writing to files safely is difficult due to the complexity of the file API and the inherent conflict between performance and correctness. Most software, including databases, still make mistakes when using the file API, and even experts struggle to write correct code.
Surface-Stable Fractal Dithering is a novel 3D dithering technique that maintains constant dot sizes and spacing on screens. It's open-source and can be used in Unity projects, with a license requiring free sharing of improvements.
Anthropic's Citations API feature allows Claude to provide detailed references to source documents, enhancing verifiable and trustworthy outputs. It addresses a specific need in AI applications by automatically citing claims in responses inferred from user-provided source documents.
Iceberg supports flexible SQL commands for data management and schema evolution. It offers features like time-travel, version rollback, and data compaction for efficient data handling.
Microsoft's email security scanners now run JavaScript in links and send POST requests, breaking single-use sign-on and email confirmation messages. This new norm means sites must deal with fake confirmations and users finishing sign-up twice due to security scanners' actions.
A bug was found in macOS 15.0's kernel, causing a memory leak when running sysctl -a. The bug was due to a 4-byte load instead of a 2-byte load in the sysctl_udp_log_port function, allowing 2 bytes of kernel memory to be leaked.
Clive Sinclair was born in 1940 in England and showed a talent for mathematics and electronics from an early age. He founded Sinclair Radionics in 1961 and released the Sinclair Executive, a pocket calculator, in 1972, which was a huge success.
Bluesky has various feeds for different interests such as science, books, video games, anime, fitness, music, fashion, and more. Users can join specific feeds by using relevant hashtags or keywords to increase visibility and connect with others.
Gradient descent is a popular algorithm for optimizing neural networks, and various optimization algorithms have been developed to improve its performance, including stochastic gradient descent, mini-batch gradient descent, and adaptive learning rate methods such as Adagrad, Adadelta, RMSprop, and Adam. These algorithms aim to address challenges such as slow convergence, oscillations, and ...
The author believes that writing code "without bugs" is a good mindset for developers in small teams or startups, as it leads to faster shipping, lower costs, and higher quality products. This approach requires a balance between shipping features and making the product robust, scalable, and maintainable, which is achieved through conscious effort and subconscious skills.
The user tested the AMD Ryzen 9 9900X with Zen 5 cores, disabling the op cache to see how the dual 4-wide decoders handle instruction delivery. The results show that while single-threaded performance is not great, SMT performance is very good, and the dual cluster decoder is well-suited for multithreaded workloads where the op cache is not big enough.
The 1973 album Tubular Bells contains a hidden Morse code signal from a 1926 Rugby Radio Station transmitter, picked up by the studio equipment. This signal was decoded as 'VVV GBR', matching the station's callsign, and has a connection to Alan Turing's work in cracking the Enigma code.
TMSU is a command-line tool for tagging files and providing a virtual filesystem for tag-based views. It maintains its own database and allows for simple queries and logical operators.
edge-tts is a Python module for Microsoft Edge's text-to-speech service. It supports voice change, playback, and customization of rate, volume, and pitch.
Scale AI and Center for AI Safety published Humanity's Last Exam, a benchmark testing AI knowledge at human expertise frontiers. Current AI models answered fewer than 10 percent of expert questions correctly, showing room for improvement.
To build a working ZX80 computer, you need to follow a detailed guide that includes accurate circuit diagrams, PCB layouts, and instructions on how to etch and assemble the board, and then solder the components into place. The guide also provides information on how to modify the circuit to convert it into a ZX81 computer, and how to use a 2764 EPROM to run the ZX81 ROM.
Xcode 16 changed how to reference local packages from example apps, requiring a local dependency path instead of dragging the parent folder. This change causes issues with file operations and testing, but using a separate editor like Emacs can help with development and testing.
Microsoft's cloud services, including Azure and GPT-4, have been used by the Israeli army for intelligence and combat purposes. The Israeli Defense Ministry has spent millions of dollars on Microsoft's services since the Gaza war began.
Inspired by John Carlos Baez’s post about the Pentagram of Venus[1]. This is the position of Venus relative to the Earth. I got distracted by fun spirograph style images. I use Kepler’s Third Law to convert the orbital period to the distance from the sun.
John Burn-Murdoch analyzes American Time Use Survey data showing increased time spent alone, especially among young people. Younger age groups show steeper increases in solo time, with closing gaps between men and women that flip at 65+.
The author developed a super fast phrase search algorithm using AVX-512 that achieved up to 1600x the performance of Meilisearch, a production-ready search engine. The algorithm uses a combination of smart algorithms, raw performance optimization, and SIMD instructions to achieve its high performance.
The article discusses adding AI-driven vector search to existing applications without re-platforming. It uses Postgres 17 and the pgvector extension to create a simple recommendation engine.
George R.R. Martin co-authored a physics paper with Ian Tregillis about the Wild Cards series. The paper derives a formula to describe the dynamics of the Wild Cards virus, which gives humans superpowers or mutations.
Scientists at Caltech and Princeton discovered that bacteria form long cables in mucus solutions, creating a 'living Jell-O' structure. This finding could aid in understanding diseases like cystic fibrosis and biofilms, and has implications for industrial applications.
Google invested in XR for over a decade and introduced the Android XR platform last month. Google is welcoming HTC VIVE engineers to join their team to accelerate Android XR platform development.
A study found that frequent social media use, especially among active posters, is correlated with higher levels of irritability in US adults. Frequent posting on platforms like TikTok was associated with the highest irritability levels.
DeepSeek unveiled their V3 model trained on 2,048 H800 GPUs, matching or exceeding GPT-4 and Claude benchmarks. Their efficiency suggests the path to better AI isn't just about throwing more GPUs, but fundamental improvements in model training.
The project, libmodulor, is a research project in active development, aiming to create a production-grade library for building quality projects faster. It's still in its early stages and subject to breaking changes.
The US is considering stricter social media regulations for children, with some states passing laws to limit data collection and parental consent. Australia has banned users under 16 from social media platforms, with 77% of Australians supporting the law.
Security researchers exploited 16 unique zero-days at Pwn2Own Automotive 2025, collecting $382,750 in cash awards. Fuzzware.io leads the competition after hacking electric vehicle chargers and earning $50,000 and 10 Master of Pwn points.
The article discusses the ternary system, a base-3 numbering system that has charms of its own. It is the Goldilocks choice among numbering systems, neither too small nor too big.
Linux has 112 million users with a 4% market share, driven by a loyal community concerned about security and privacy. They value free software as a matter of liberty, not price, and prioritize encryption for protection.
Dwarf Fortress received its Adventure Mode update on January 23, adding a turn-based roguelike mode to the game. The update is available to existing owners at no extra cost and offers a new way to experience custom worlds from a different perspective.
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Germany's economy has declined significantly since the 1990s, and the country is losing out in the field of artificial intelligence (AI) due to a lack of investment and poor incentives for researchers. To regain its position, Germany should invest in AI research and development, particularly in the area of AI-controlled robots that can learn to do tasks that humans don't like, and create a ...
You're developing a language learning app for Buddhist monks using LLMs and spaced repetition techniques, currently on AWS but seeking cost-effective alternatives.
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React Server Components (RSCs) bring performance benefits and cleaner code but introduce challenges in understanding and debugging server-side logic, which can be addressed using OpenTelemetry. OpenTelemetry provides a powerful and standardized way to gain deep insights into RSCs' behavior, allowing developers to optimize their code and identify potential issues more effectively.
The book compares Polars and Pandas dataframe libraries, arguing that Polars is more intuitive and faster, but still lacking some Pandas features. It's a free, open-source resource that provides idiomatic code examples for both libraries, suitable for those familiar with dataframe libraries.
VERSES' Genius Agent outperformed top AI models on Atari 100k benchmark with 90% less data and dramatically less compute. Genius Agent's hyper-efficient Bayesian-based approach demonstrates a new biomimetic approach to general machine intelligence that is more effective, efficient, and sustainable.
Immigrants contribute significantly to the US economy through taxes, consumer spending, and labor, but mass deportations would cause economic losses, labor shortages, and higher costs for Americans. The US economy would suffer from reduced economic growth, a smaller labor force, and lost jobs if President Trump's mass deportation proposals are implemented.
polyhedral.info provides information on polyhedral compilation techniques and community developments. Polyhedral compilation optimizes programs with nested loops and arrays using parametric polyhedra and Presburger relations.
Companies are racing to find natural deposits of hydrogen underground, which could be used as a greener fuel in various industries. Researchers are exploring new methods to locate and extract the gas, which could help meet energy demand while addressing climate change.
Des gendarmes et policiers ont été déployés dans le Vierzonnais pour enquêter sur la disparition d'un entrepreneur, David Balland, cofondateur de Ledger. Ils ont effectué des interventions, notamment à Vierzon, sans que des informations sur une demande de rançon ne soient filtrées.
EA Origin is being discontinued on April 17, 2025, and users must switch to the EA app to continue playing purchased games. The EA app is available on 64-bit systems and allows users to transfer save data and game mods.
The user created a system to automate the process of splitting 3D printed models into smaller parts using dovetail joins, allowing for easier assembly and customization. They successfully integrated the system with OpenSCAD and a new geometry library called manifold, enabling faster and more robust computation of the design.
Operator is a research preview of an agent that can perform tasks on the web, powered by Computer-Using Agent (CUA) model, which combines GPT-4o's vision capabilities with advanced reasoning through reinforcement learning. CUA is trained to interact with graphical user interfaces and has achieved a 38.1% success rate on OSWorld and 58.1% on WebArena for web-based tasks, with the goal of ...
The database is often the bottleneck in Rails applications, but this doesn't necessarily mean the application is IO-bound, as CPU starvation can be misinterpreted as IO waiting. Understanding the ratio of IO to CPU in an application is crucial to determine the best execution model, and Ruby performance should not be disregarded in favor of database optimization.
I would convince people to prioritize therapy and budgeting for emotional and financial literacy, understanding, and security. These skills can lead to reduced anxiety and increased financial stability, allowing for more mindful spending and support of valued services and businesses.
Devin, an AI software engineer, failed to complete 17 out of 20 tasks in a recent evaluation, with some tasks taking days to complete or producing unusable solutions. The AI's autonomous nature became a liability, as it would pursue impossible solutions rather than recognizing fundamental blockers.
Researchers Phan et al. published an article titled "Humanity's Last Exam" on arXiv in 2025.