Published: 2025-03-10 | Origin: Hacker News

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Published: 2025-03-10 | Origin: Hacker News

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Published: 2025-03-10 | Origin: Hacker News

This content is part seven of a non-fiction work by Raoul Pop about the National Radio Astronomy Observatory (NRAO) in Green Bank, West Virginia. It discusses the unique characteristics of the cars used on the NRAO campus, which are primarily older diesel models. The choice to use these specific vehicles stems from the need to minimize radio frequency interference (RFI) that can disrupt research. Gasoline-powered cars generate more RFI due to their spark plugs, while the original diesel fleet has no

Published: 2025-03-10 | Origin: /r/programming

The Engineer’s Codex discusses the strengths of Anthropic's Claude 3.7 and Claude Code in real-world software engineering tasks. Anthropic has shifted its focus in developing these models away from purely competitive programming challenges, optimizing instead for tasks that reflect actual business needs. Early testing indicates that Claude excels in coding capabilities, outperforming competitors like ChatGPT and Google's Gemini in practical applications. As Jeff Bezos noted, when there's a discrepancy between data and user experiences, the users' anecdotes are often more reliable

Published: 2025-03-09 | Origin: Hacker News

Modern operating systems operate in two main protection domains: user mode (unprivileged) and kernel mode (privileged). Most software runs in user mode, where it cannot perform high-level operations like file access or network communication directly. To execute these functions, software makes system calls to switch to kernel mode, allowing the kernel to handle the requested operations after verifying permissions. Operating systems commonly utilize a monolithic kernel design, granting the kernel full access to hardware, memory, and user data. While this design

Published: 2025-03-09 | Origin: Hacker News

arXivLabs is a platform for collaborators to create and share new features on the arXiv website, guided by values of openness, community, excellence, and user data privacy. Only partners who align with these values are involved. There is an invitation for project ideas that could benefit the arXiv community. Additionally, users can receive operational status notifications via email or Slack.

Published: 2025-03-09 | Origin: /r/programming

The content emphasizes the importance of user feedback and outlines the functionality of a regex optimizer that transforms Oniguruma patterns into optimized versions while ensuring they match the same strings. The optimizer focuses on minification and performance improvements, avoiding changes that could potentially lead to issues in edge cases. It's been tested with tm-grammars on numerous regex patterns, and while it considers flags, it does not alter top-level flags in a way that changes regex meaning. Some optimizations are always enabled and result from the parser

Published: 2025-03-09 | Origin: /r/programming

Dmap is a simple and efficient zero-friction hashmap for C, designed to outperform popular hashmaps like uthash and std::unordered_map. It supports 64-bit platforms, including Linux and Windows (macOS is untested), and allows users to store complex structs directly without the need for memory allocation or pointer indirection. Dmap uses a dynamic array to store values, facilitating efficient iteration and cache-friendly lookups. It is inspired by Per Vognsen's dynamic array implementation and is licensed

Published: 2025-03-09 | Origin: Hacker News

The content introduces a series of programming puzzles aimed at teaching internationalization. New puzzles will be released from March 7 to March 26, 2025. Users are encouraged to engage in discussions on Discord or Reddit and can sign up for email updates.

Published: 2025-03-09 | Origin: /r/programming

The author shares insights from recent updates to their blog, emphasizing a shift in approach to web development by adopting the concept of "Lots of Little HTML Pages" (LLMS). They argue that instead of building complex, JavaScript-enhanced interactions on a single page, creating separate HTML pages for each interaction simplifies the process and enhances user experience. This method leverages CSS transitions to achieve smooth interactions with far less complexity. Two examples illustrate this shift: while initially planning to use JavaScript for filtering posts on

Published: 2025-03-09 | Origin: /r/programming

The text discusses a tile-laying puzzle solver designed for polyominoes, such as the board game Patchwork. It highlights that this solver is unique as it is easily accessible, user-friendly, efficient, and allows for the addition of custom pieces. It features a Flask-based web UI for simplicity and intuitiveness, converting tiling problems into SAT problems to find solutions. A screenshot is mentioned, showing a solution that successfully covers the entire game board. Feedback from users is valued and taken seriously,

Published: 2025-03-09 | Origin: /r/programming

Calculus is a vital mathematical field that analyzes changes in continuous quantities, impacting various scientific disciplines, including physics, chemistry, engineering, finance, medicine, and meteorology. It distinguishes between discrete quantities (countable) and continuous quantities (any value within a range). The core focus of calculus includes determining the instantaneous rate of change of a function at a specific point, typically represented by the derivative. This derivative indicates how steeply a function rises or falls at that point and can be mathematically defined using

Published: 2025-03-09 | Origin: /r/programming

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Published: 2025-03-09 | Origin: Hacker News

"It is as if you were on your phone" is a speculative game set in a near future where societal pressures compel individuals to constantly engage with their phones while simultaneously discouraging it. Players mimic being on their phones, allowing them to "pass as human" without actually engaging in the exhausting activities typically associated with phone use, like liking photos or swiping through profiles. The game offers a form of freedom through this pretense. It was developed using p5 and Hammer.js for touch gestures and is

Published: 2025-03-09 | Origin: Hacker News

The post explains how to use the Clang API to compile a single C++ source file into an object file, functioning similarly to a simplified clang executable with options for generating assembly or object files. It provides code samples and discusses the necessary setup involving linking against Clang and LLVM libraries through a CMakeLists.txt file. The author notes the need for an appropriate LLVM and Clang installation with specific CMake configuration files, which can be obtained from system packages or by building LLVM from source. A build

Published: 2025-03-09 | Origin: Hacker News

The blog post discusses the author’s transition from using tools like pip, pyenv, pipx, pip-tools, and pipdeptree to the new tool, uv. The author is currently on Ubuntu Linux 24.04 and has details about their existing Python installations and environments managed with pyenv, including the presence of Python 3.7 and default version 3.10.14. They have several packages installed in their 3.10.14 environment and many others through pipx.

Published: 2025-03-09 | Origin: /r/programming

The content discusses the author's exploration of PyPi, the Python Software Foundation's package repository, which hosts over half a million open-source projects. The author aims to visualize this extensive collection and uncover interesting packages by analyzing the metadata of these projects, focusing particularly on their dependencies. Using PyPi's JSON API and data available on BigQuery, the author retrieves the necessary metadata to create a directed graph representation of package dependencies. However, the initial dataset is messy due to the presence of non-standard packages,

Published: 2025-03-09 | Origin: Hacker News

The content describes a repository of free and open source software (FOSS) applications for Android. OpenAPK allows users to download the latest versions of popular apps securely, ensuring they are always up to date. The repository features a selection of open source applications, including well-rated ones like Signal, Spotube, Scrcpy, and PPSSPP, along with numerous others spanning various categories such as music, productivity, and gaming. The text provides ratings for each app, highlighting user engagement and preferences. Overall

Published: 2025-03-09 | Origin: Hacker News

The article discusses the growing popularity of the amino acid theanine, commonly found in tea and now available as a dietary supplement claimed to help with anxiety, mood, and memory. Many users report positive experiences, including benefits for ADHD and social anxiety. Biologically, theanine is similar to glutamate, a common neurotransmitter, and can cross the blood-brain barrier, suggesting it might impact brain function. However, despite the anecdotal evidence and popularity, the scientific research supporting theanine's effectiveness appears

Published: 2025-03-09 | Origin: /r/programming

This blog post discusses the use of unions and intersections of object types in TypeScript, focusing on how they can represent multiple forms of a single type, such as a `Shape` that can be a `Triangle`, `Rectangle`, or `Circle`. It introduces a virtual file system with a `readFile()` function, explaining how to narrow a `FileEntry` type using TypeScript's `in` operator to access properties. The author emphasizes the importance of covering all possible cases and checking for un