Published: 2025-06-25 | Origin: /r/ruby

The newsletter edition by Matt Solt on June 24, 2025, highlights significant updates in the Ruby AI community, featuring an interview with Obie Fernandez, Principal Engineer at Shopify. The content includes a comprehensive overview of Obie's insights on recent developments in AI, such as Anthropic, Raix, and his new book. Key topics covered include the release of Desiru, which enhances the use of DSPy for Ruby developers, and updates on Raix, a chatbot interface for AI interactions

Published: 2025-06-25 | Origin: Hacker News

Chris Espinosa was one of Apple's earliest and youngest employees, starting at just 14 years old. He left the company in 1978 to attend UC Berkeley but continued to contribute freelance work, including writing the Apple II Reference Manual, which replaced the famous "Red Book."

Published: 2025-06-25 | Origin: /r/ruby

PostgreSQL 17 has introduced RETURNING support for the MERGE statement, resolving a significant limitation for developers who needed atomic upserts while tracking data changes. This enhancement is particularly beneficial for Rails applications that often require data synchronization—whether from APIs, CSV imports, or inter-service communication—typically generating complex queries and potential race conditions. The new MERGE functionality allows users to return modified rows along with their operation type (INSERT, UPDATE, or DELETE). Although Active Record does not yet support this feature

Published: 2025-06-25 | Origin: Hacker News

A former student of Tomonaga congratulated Feynman, who then inquired about the student's current work. The student, Mr. Mano, mentioned he was studying the Coherence theory and its applications to electromagnetic wave propagation in turbulent atmospheres, describing it as a "humble and down-to-earth type of problem."

Published: 2025-06-25 | Origin: /r/programming

The author discusses the use of `dynamic_cast` in C++ and generally advises against it due to its negative impact on code readability. However, they acknowledge there are situations where using `dynamic_cast` may be justified, particularly in SDKs that evolve over time with versioned interfaces to maintain compatibility. In the example provided, SDK owners use versioning to prevent user code from breaking. They retrieve a basic pointer type (like `void*`) from a DLL, then attempt to cast it to

Published: 2025-06-25 | Origin: Hacker News

Let's Encrypt is nearing the launch of certificates for IP address Subject Alternative Names (SANs) in their production environment. These will be available under a shortlived profile with a 6-day validity, but initially will be restricted to an allowlist. The launch timeline and allowlist requests are not yet established. The content also discusses identified bugs in the display of IP address SANs in Firefox and a potential issue in Discourse regarding hyperlink functionality. There are technical queries about not following redirects in browsers

Published: 2025-06-25 | Origin: /r/programming

Subsecond is a Rust library that facilitates hot-patching, enabling developers to modify running applications without needing to restart them. This feature is particularly beneficial for long-running applications like game engines and servers, as it accelerates the edit-compile-run cycle. Subsecond also includes a method called "ThinLinking," which speeds up the compilation of Rust code in development mode, making it useful even outside of hot-patching. The library is designed for simplicity, allowing both application developers and library authors to easily

Published: 2025-06-25 | Origin: /r/programming

The article discusses accessing the NFC chip data in a passport using Linux, specifically with a tool called pypassport. The NFC chip, which stores passport information including biometrics, is secured by a password located in the Machine Readable Zone (MRZ) on the passport. This password comprises three data pieces, each with its own checksum, and the entire string also has a checksum, which can be partially lost if the passport is canceled by cutting the MRZ. The author faces a challenge since using

Published: 2025-06-25 | Origin: Hacker News

The article discusses a method to expedite and reduce the cost of OpenAI transcriptions by speeding up audio playback. The author recommends using ffmpeg to process audio at 2x or 3x speed before transcription, resulting in fewer tokens used and a shorter waiting time, with minimal impact on transcription quality. The writer shares a personal anecdote about attempting to summarize a 40-minute talk by Andrej Karpathy, during which they mistakenly believed the built-in YouTube auto-transcription feature wasn't available.

Published: 2025-06-25 | Origin: Hacker News

Gemini CLI is a new open-source command-line interface designed for developers, integrating the Gemini AI directly into their terminal. This tool enhances the terminal experience by providing lightweight and versatile access for various tasks, including coding, content generation, problem-solving, research, and task management. It is integrated with Google’s AI coding assistant, Gemini Code Assist, allowing all developers to utilize AI-driven coding prompts in both VS Code and Gemini CLI. Users can access Gemini CLI for free by logging in with a personal Google

Published: 2025-06-25 | Origin: /r/programming

The content discusses the differences between improvisational creativity in jazz and structured processes in software development, particularly in modeling sessions. It highlights a phenomenon referred to as “the CTO effect,” where the first person to speak—often a senior leader—dominates the discussion, causing quieter team members to lose their voices. To counteract this, the author recommends starting modeling sessions with 10-15 minutes of silent brainstorming. This allows all team members to generate ideas simultaneously, preventing any single individual from steering the conversation

Published: 2025-06-25 | Origin: /r/programming

The article discusses enhancements made to CKEditor 5, a popular JavaScript library, focusing on reducing its bundle size by 40% through tree-shaking and optimization techniques. It outlines the importance of bundle size for performance in a modular framework with numerous packages and details the challenges of maintaining a library that must be user-friendly, fast, and compatible with various environments. The initiative, dubbed "Madagascar," aims to improve developer experience across installation, configuration, and documentation. Overall, the article provides

Published: 2025-06-25 | Origin: /r/programming

OpenAI is transitioning its Codex CLI from a TypeScript-based implementation to Rust to enhance performance and address limitations as the tool matured. While the TypeScript version served well for prototyping, it struggled to meet the demands of various use cases. OpenAI will retire the TypeScript CLI, which will still receive bug fixes temporarily, and focus on achieving feature parity with the new Rust build. The shift to Rust, as explained by OpenAI's Fouad Matin, is not ideologically driven;

Published: 2025-06-25 | Origin: Hacker News

Failed to fetch content - HTTP Status - 404

Published: 2025-06-25 | Origin: Hacker News

The discussion around renewable energy costs is often clouded by misinformation aimed at promoting fossil fuels. A key point of contention is whether renewables can lower energy costs. An analysis of ERCOT data from Texas shows that they indeed can. Comparing August 2018 to August 2024, peak electricity demand rose from 65 GW to 80 GW, while solar power production surged from 1.2 GW to 18.8 GW. Despite the increased demand, the wholesale price of electricity in August

Published: 2025-06-25 | Origin: Hacker News

A new PNG specification has been released, marking a significant revival of the PNG format after over two decades of stagnation. This update is notable as the PNG format is recommended by major institutions like the U.S. Library of Congress and Canada’s Library and Archives. The new specification introduces High Dynamic Range (HDR) support using only 4 bytes in addition to the standard PNG overhead. Chris Lilley, a co-author of the original PNG, has written about how this HDR feature works. Additionally, animated

Published: 2025-06-25 | Origin: Hacker News

The content requests users to enable JavaScript in their browsers and refresh the page to access and view the information it contains.

Published: 2025-06-25 | Origin: Hacker News

Theodore Nichols is advocating for the creation of "thnickels," which are thicker coins intended to offer a heftier feel compared to regular nickels. He has experienced issues, including a dispute with a neighbor regarding a prototype and an incident where burglars did not take him seriously when he defended himself with a bag of nickels. Theodore has set up a minting facility to produce these coins and is taking pre-orders with limited slots available. He has received significant interest through flyers and emphasizes the satisfaction

Published: 2025-06-25 | Origin: Hacker News

The content emphasizes the importance of user feedback and highlights an accessible text editor designed for simple needs, inspired by the classic MS-DOS Editor but featuring a modern interface similar to VS Code. Users can download binaries from the Releases page, and the latest version can be installed using WinGet, with the executable named "edit" and an alternative name "msedit." To avoid conflicts with existing commands, it's recommended to use "msedit" instead of "edit," and to assign an "edit" alias

Published: 2025-06-24 | Origin: /r/programming

The DRM GPU scheduler is a component of the Direct Rendering Manager (DRM) in the Linux Kernel, utilized by various GPU drivers to manage job submissions from multiple rendering contexts to the GPU. Its key functions include resolving dependencies, detecting timeouts, and crucially, implementing scheduling algorithms to select the next task for execution based on GPU capacity. Different kernel drivers interact with the scheduler in diverse ways; some utilize it primarily for dependency resolution and timeout detection, while others leverage its scheduling capabilities to determine the sequence