Published: 2025-07-23 | Origin: /r/programming

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Published: 2025-07-23 | Origin: /r/ruby

The author predominantly works with Ruby on Rails applications but is currently developing a Ruby application on Rack, which is faster but lacks some conveniences provided by Rails, such as automatic code reloading. They discuss the limitations of the Zeitwerk code loader, which requires manual reloading and is not thread-safe, making it complicated when using web servers like Puma that utilize both threads and processes. The tutorial aims to address these challenges by combining Zeitwerk with the listen gem and concurrent-ruby to achieve effective code reloading

Published: 2025-07-23 | Origin: /r/programming

The content discusses a clever programming trick involving the use of uninitialized array values, which allows code to function correctly and improve performance by changing some operations from linear to constant time. This technique is referenced in works by Alfred Aho, John Hopcroft, and Jeffrey Ullman, as well as Jon Bentley. The main focus is on efficiently representing a sparse set of integers, which is typically done using a bit vector. This allows for fast operations to add, remove, or check integers. However, iter

Published: 2025-07-23 | Origin: Hacker News

The Pew Research Center's analysis indicates that AI features in Google's search results are negatively impacting web traffic. Following Google's implementation of AI Overviews, or "search generative experience," in May 2023, there has been a significant drop in clicks on search results. The report found that searches without AI responses had a click rate of 15%, while those with AI Overviews saw this rate decrease to 8%. Despite Google's assertion that users still click on links provided in AI Overviews, Pew's

Published: 2025-07-23 | Origin: Hacker News

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Published: 2025-07-23 | Origin: /r/programming

Of course! Please provide the content you'd like me to summarize.

Published: 2025-07-23 | Origin: Hacker News

CARA (Capstans Are Really Awesome) is the creator's latest quadrupedal robot, following previous models ZEUS, ARES, and TOPS. Developed over a year, CARA features an innovative design that utilizes capstan drives instead of traditional gears or pulleys, making her the second quadruped to employ this system after Stanley. Capstan drives offer benefits such as zero backlash, high torque transparency, low inertia, low cost, and quiet operation, making them ideal for robotics

Published: 2025-07-23 | Origin: Hacker News

The Promised LAN is a closed, membership-only network that has functioned as a 24/7 LAN party since 2021. While most documentation is kept within the LAN, the website provides insights for potential members and friends. A Manifesto outlines the reasons for the LAN's creation, its goals, and its social-technical dynamics. The network features a Backbone structure to manage connections efficiently, preventing complexity from multiple direct LAN connections. Currently consisting of three nodes (Debian with strongSwan

Published: 2025-07-23 | Origin: /r/programming

The X-Forwarded-For (XFF) HTTP header is essential for revealing the original IP address of clients in web requests, particularly when those requests pass through multiple intermediaries like servers, proxies, or load balancers. Without this header, the receiving server would only see the last intermediary's IP address. The X-Forwarded-For header allows intermediaries to provide the complete history of how the request was routed, helping backend applications identify the true client origin. The last proxy in the

Published: 2025-07-23 | Origin: /r/programming

The author is advocating for the Elixir programming language and its ecosystem, expressing frustration over having to repeatedly justify its value. They argue that Elixir is not only a solid option but often the best choice for modern development, especially in the context of scalable, maintainable, and high-performance applications. The piece addresses common misconceptions and highlights Elixir's unique features, such as its scalability, concurrency, and resilience due to its foundation on the Erlang VM (BEAM). The author has compiled their arguments

Published: 2025-07-23 | Origin: Hacker News

Upon returning to the U.S. from their historic Apollo 11 mission to the moon in 1969, astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins filled out a customs declaration form. They were required to declare "moon rock and moon dust samples" they had collected, listing their flight number as "Apollo 11" and their departure point as "Moon," with an arrival in Honolulu, Hawaii. The customs form included a section asking about conditions that could lead to the spread of disease

Published: 2025-07-23 | Origin: Hacker News

The author recounts attending the Open Sauce event for the second time with their retired radio engineer dad. Open Sauce, organized by William Osman, is a Bay Area maker fair featuring various exhibits that showcase creativity and innovation, such as a hot dog race track that tazes the winning wiener. The event attracts makers and hobbyists, many of whom are popular on YouTube, including CuriousMarc, who demonstrated his restoration of vintage electronics while engaging with fans. The author also encountered other creators like Tube

Published: 2025-07-23 | Origin: /r/programming

The content discusses common excuses made by development teams regarding the inability to implement proper practices such as telemetry, testing, refactoring, CI/CD, and API documentation, often attributing these challenges to business decisions or resource constraints. The author emphasizes that these excuses reflect a misunderstanding between business and technical responsibilities, suggesting that developers should take ownership of technical decisions without seeking permission, as they do for smaller coding tasks. The piece argues that delivering a feature involves more than just writing code; it includes ensuring the quality and

Published: 2025-07-23 | Origin: /r/programming

WebAssembly (Wasm) is deemed ready for production use in web applications, although it relies on integration with web page APIs like the DOM, primarily through JavaScript. Despite Wasm's strict separation from JavaScript—being a clean bytecode format as opposed to asm.js—it can interact with the DOM and other JavaScript APIs effectively. Existing JavaScript APIs are sufficient for Wasm to function without requiring new versions. Wasm has been evolving to allow build toolchains to generate less JavaScript code

Published: 2025-07-23 | Origin: Hacker News

In the article from July 21, 2025, Thierry de Pauw discusses the advantages of trunk-based development (TBD) as a superior approach to software delivery compared to feature branching. The article emphasizes that continuous integration inherently involves trunk-based development, which has been associated with improved IT delivery performance since its mention in reports and literature like the State of DevOps and the book Accelerate. Well-known companies including Google, Microsoft, and Netflix successfully implement TBD, even at large scales, with Google

Published: 2025-07-23 | Origin: Hacker News

The content discusses a command-line tool named wtffmpeg that uses a local Large Language Model (LLM) to convert natural language requests into executable ffmpeg commands. It emphasizes the ease of use by allowing users to simply describe their audio/video tasks instead of searching through documentation. To use the tool, you need Python 3.8+, a properly set up virtual environment, and specific installation of `llama-cpp-python` tailored to your hardware (NVIDIA GPUs, Apple Silicon, or CPU

Published: 2025-07-23 | Origin: Hacker News

Extreme weather events, exceeding historical norms, are significantly impacting food prices and supplies worldwide. Foods such as potatoes, rice, fruits, and vegetables have seen price increases due to conditions like extreme heat, drought, and heavy rain, affecting crops in various countries including the UK, the US, South Africa, and India. The study, led by Maximilian Kotz from the Barcelona Supercomputing Center, examined 16 cases across 18 countries over two years (2022-2024) and found

Published: 2025-07-23 | Origin: Hacker News

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Published: 2025-07-23 | Origin: Hacker News

The content discusses resources and tools related to Org-mode, a popular organizational tool. It highlights the Orgdown project page for tools that support Org-mode syntax files. There are various documents detailing different workflows and setups, which can inspire users as they advance in their use of Org-mode. Key aspects include: - The `org-secretary.el` package, designed for managing the work of multiple individuals. - A tutorial on managing meetings and tracking group tasks. - A setup shared by Christian Egli for taking

Published: 2025-07-22 | Origin: /r/programming

The Python development community has announced the first release candidate for Python 3.14 (3.14.0rc1), marking the transition to the release candidate phase where only reviewed bug fixes are permitted. The final release is set for October 7, 2025, following a second release candidate scheduled for August 26, 2025. There will be no ABI changes moving forward, and third-party project maintainers are encouraged to prepare their projects for compatibility with Python 3.14,