Published: 2025-07-06 | Origin: /r/ruby

Ruby 3.4 introduces the `it` parameter as a clearer alternative to numbered parameters like `_1`, specifically for single-argument blocks. This change aims to improve code readability while maintaining performance. The adoption of the `it` parameter was driven by concerns over the cognitive load associated with remembering numbered parameters. The Ruby core team addressed potential conflicts, particularly with RSpec's `it` method, by gradually rolling out the feature: Ruby 3.3 will issue warnings, while 3

Published: 2025-07-06 | Origin: /r/programming

A security researcher, Sharon Brizinov, discovered sensitive information in deleted GitHub commits, including a personal access token that granted admin access to all Istio repositories, which are crucial for many enterprises. This discovery led to around $25,000 in bounties. The investigation highlighted the challenges developers face when they accidentally commit sensitive data (like passwords) and later attempt to delete those commits. Git's design preserves commit history, and while developers can use a force push to rewrite history to remove the

Published: 2025-07-06 | Origin: Hacker News

jank is a general-purpose programming language that serves as a strongly compatible dialect of Clojure. It combines the interactive and value-oriented nature of Clojure with native compilation and minimal runtimes, operating on C++ with an LLVM-based JIT for improved performance. While maintaining Clojure's core features, such as code-as-data philosophy and powerful macros, jank focuses on functional programming with persistent, immutable data structures. It also includes software transaction memory and a reactive agent system for managing mut

Published: 2025-07-06 | Origin: /r/programming

The author discusses a solution for synchronizing JavaScript/React state management across multiple Tauri processes (windows) using the Zustand library. While developing an application called Hopp, they faced challenges with state management in a multi-window environment, where both the main control panel and a separate window for screen-sharing needed to share and sync state. Instead of managing state purely on the backend to maintain reactivity, they opted for a loosely synced approach to avoid excessive complexity and ensure that components remained reactive without being burden

Published: 2025-07-06 | Origin: /r/programming

Open Policy Agent (OPA) is a powerful tool for enforcing Kubernetes policies, providing precise control to keep clusters secure and consistent. While Kubernetes allows for code-based resource management, it lacks built-in mechanisms to detect errors in configurations, which can lead to security vulnerabilities. OPA addresses this by enabling administrators to define and enforce admission control checks that ensure resource definitions adhere to specified criteria, helping to prevent configuration errors and maintain consistency within Kubernetes environments. OPA operates using a policy-as-code approach, allowing users to write

Published: 2025-07-06 | Origin: /r/programming

The July 2025 release of C3, version 0.7.3, focuses on refining the language, particularly its compile-time components. Key improvements include enhanced ways to inspect and manipulate types through direct type use and typeid values, allowing constant typeids to be used directly for implicit type conversion. This change simplifies macro code by eliminating the need for converting typeids to types, leading to clearer syntax. Additionally, the $assignable builtin has been updated to accept both types and typeids

Published: 2025-07-06 | Origin: /r/programming

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Published: 2025-07-06 | Origin: /r/programming

TUIKit is a C++ framework for creating rich and interactive Terminal/User Interfaces (TUIs), inspired by the Qt framework and based on FTXUI. It is particularly suited for scientific and engineering applications, providing a familiar development experience. The framework includes core components and supports the embedding of JSON UI definitions (.tuik files) into binaries, with examples and usage guidelines available. Developers can clone the repository, install dependencies, configure CMake, and build the project to run provided examples. Contributions to the

Published: 2025-07-06 | Origin: Hacker News

The excerpt discusses the uncertainty people felt about why objects remained on the ground and why celestial bodies like the moon did not fall to Earth. This uncertainty was addressed in Isaac Newton's 1687 work, "Philosophiæ Naturalis Principia Mathematica," which explained fundamental principles of motion and gravity. The book, funded by Edmund Halley, provided a scientific framework that replaced vague beliefs about gravity with clear laws that could predict the behavior of objects, both large and small. Newton's laws have

Published: 2025-07-06 | Origin: Hacker News

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Published: 2025-07-06 | Origin: Hacker News

Matthias Winkelmann's company opted for outsourcing to reduce costs, handing off development work for a fixed-bid project to an overseas firm with lower hourly rates. In-house programmers were restricted from providing technical support, only assisting testers in communicating issues, which led to significant challenges. One major problem involved a security vulnerability (SQL Injection) that the in-house team identified and communicated but the overseas team struggled to understand. Despite passing helpful resources, multiple weeks of back-and-forth testing revealed persistent issues,

Published: 2025-07-06 | Origin: Hacker News

Jake Gold explores the effectiveness of 90s-era CGI in modern web development, demonstrating that with a Go + SQLite CGI program running on a 16-thread AMD 3700X, it's possible to serve over 2400 requests per second or over 200 million requests daily. Reflecting on his early web development experiences with CGI, Gold notes how CGI instigated heavy overhead by starting a new process for each web request, prompting the evolution of more efficient technologies like PHP and FastCGI.

Published: 2025-07-06 | Origin: /r/programming

The content discusses the evolution of computer architecture, specifically focusing on the Intel 8086 processor, which initiated the widely used x86 architecture. Notable features of the 8086 include its little-endian format, a parity flag, and the use of explicit I/O instructions, along with specific register configurations for memory indexing. These characteristics are linked to the earlier Datapoint 2200, a minicomputer that functioned as a low-cost terminal and introduced processing capabilities that made data entry more

Published: 2025-07-05 | Origin: Hacker News

In the early 1960s, Douglas Engelbart introduced the distinction between "knowledge in the world" and "knowledge in the head" in relation to computer interfaces, which Donald Norman later popularized in his book *The Psychology of Everyday Things*. "Knowledge in the world" refers to making controls visible and intuitive, allowing users to rely on recognition rather than recall, exemplified by modern drop-down menus. In contrast, "knowledge in the head" necessitates users to memorize commands and operations,

Published: 2025-07-05 | Origin: Hacker News

The blog serves as a platform for the author to connect with supporters of the myNoise project, which relies on their contributions. The author reflects on their dream to create a positive online space amidst chaos and shares "behind the scenes" stories. Recently, the website faced a malicious attack, where an entity attempted to inject code and later flooded the server by repeatedly downloading sound files, wasting bandwidth. Despite being built from scratch, the site managed to withstand the initial attack. The author emphasizes their commitment to environmental

Published: 2025-07-05 | Origin: Hacker News

The blog post discusses the challenges introverts face when networking at events and offers a guide to improve their experience. The author reflects on their feelings of invisibility at gatherings and emphasizes that introverts possess social skills but may struggle in traditional networking environments. They provide practical steps for upcoming events, with credit given to Leil Lowndes' book "How to Talk to Anyone." Key strategies include eating beforehand to stay focused, wearing a distinctive item to spark conversations, staying updated on current events for easy discussion

Published: 2025-07-05 | Origin: Hacker News

The Date is March 15, 3019 in the Third Age, and Sauron has unleashed war upon the Free Peoples of Middle-earth, engaging in a significant battle at the gates of Minas Tirith, while also threatening Lothlorien, Thranduil's Kingdom, Dale, and Erebor. Players have the choice to align with Sauron or resist him. The Two Towers MUD is a free Multiplayer Online Roleplaying Game based on Tolkien's world during the 'Lord of

Published: 2025-07-05 | Origin: Hacker News

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Published: 2025-07-05 | Origin: /r/ruby

Rails 8 introduces a new "comparable" option for serialized attributes, addressing a long-standing issue where changes in serialization could trigger unnecessary database updates, even if the actual data remained unchanged. This option allows comparisons based on deserialized objects rather than their string representations, reducing the risk of phantom updates, especially important for applications syncing data with external sources or utilizing serialized configurations. The comparable option is compatible with custom serializers as well. However, guidelines on when to use or avoid the option are provided, emphasizing

Published: 2025-07-05 | Origin: /r/programming

Johnny's Software Lab focuses on enhancing software performance through the use of SIMD (Single Instruction, Multiple Data) functions. These functions can process multiple data elements at once, unlike traditional functions that handle single data inputs, improving efficiency. The article discusses how compilers can automatically optimize code by vectorizing loops, opting for vector functions to boost performance when processing larger data sets. It highlights the importance of declaring and defining vector functions and notes that compilers manage vectorization directives, such as OpenMP pragmas,