Published: 2025-04-07 | Origin: Hacker News

In Kawara, Fukuoka Prefecture, children are engaging with a unique trading card game (TCG) featuring local middle-aged men, known as "ojisan," rather than the typical fantasy themes commonly found in card games like Pokémon. This community-centric TCG includes 47 cards, highlighting local figures with stats and abilities. Notable cards feature Mr. Honda, a former fire chief, and Mr. Takeshita, a renowned soba noodle master, while the most sought-after card

Published: 2025-04-07 | Origin: Hacker News

Ratta Software's SuperNote A6 X2 Nomad, a 7.8-inch Android 11 tablet, was acquired by productivity enthusiasts in July 2024 for note-taking and academic reading. However, within a day, the focus shifted to exploring its vulnerabilities. The blog post details discovering a security flaw that led to the creation of a remotely installable, 0-click rootkit, allowing attackers on the same network to fully compromise the device without user interaction. This vulnerability is documented as

Published: 2025-04-07 | Origin: /r/ruby

The content discusses the implementation and usage of pattern matching in Ruby, particularly since its introduction in Ruby 2.7 and improvements in later versions. It highlights how Ruby's pattern matching can be applied not only to basic data types like arrays and hashes but also to custom objects, emphasizing the influence of functional programming concepts from languages like Haskell and Elixir. Key points include: - Pattern matching can raise errors when there’s no match. - Custom objects need to define a `#deconstruct` method

Published: 2025-04-07 | Origin: /r/programming

The post highlights a common pitfall when using `std::optional<T>`. It discusses the issue of needing to return a value from an `std::optional<T>`, where accessing the value directly with `*opt` requires a copy. The author warns against moving the value itself, as it can leave the optional in a potentially undesirable intermediate state. Instead, the recommended approach is to move the entire optional variable, which ensures that it becomes empty and avoids the risk of accessing an invalid or garbage

Published: 2025-04-07 | Origin: Hacker News

Lux is a new package manager for Lua aimed at improving the ecosystem for Lua development. It offers a user-friendly command-line interface inspired by other package managers like Cargo. Unlike Luarocks, which has a long history and complexity that complicates modern development, Lux seeks to provide a fresh start. It integrates well with Neovim, supporting features like the `rocks.nvim` plugin manager and the lazy.nvim tool, allowing for effective plugin distribution. Lux promises improved performance, as it addresses Luarocks

Published: 2025-04-07 | Origin: /r/programming

The Model Context Protocol (MCP) is a new standard that enhances how Large Language Models (LLMs) interact with data and tools, likened to "USB-C for AI agents." While MCP offers significant integration benefits, it also poses serious security risks. Research by Equixly highlights alarming vulnerabilities, such as Remote Code Execution (RCE) through command injection, with over 43% of tested MCP server implementations having unsafe shell calls. Malicious actors can embed harmful instructions within tool descriptions that

Published: 2025-04-07 | Origin: Hacker News

Browser MCP is a tool that connects AI applications to web browsers, enabling automation of tasks such as form filling and data collection, which typical AI apps can't do due to their lack of browser access. This solution helps accelerate workflows by allowing AI editors to perform end-to-end testing of code and validating user interfaces across different scenarios. Automation occurs locally on your device, leading to improved performance and enhanced privacy, as no data is sent to remote servers. Additionally, it maintains your logged-in status across services and effectively

Published: 2025-04-07 | Origin: /r/ruby

This content introduces a Ruby interface for the popular game StarCraft® II, which is free to play. It encourages aspiring pro gamers to utilize their skills by creating "bots" that compete against each other on the AI Arena platform, with opportunities for regular tournaments and live streaming. The guide outlines essential steps for setting up the game and the necessary tools, including downloading the game and maps, and installing required libraries. It emphasizes that no advanced math skills are needed for bot creation, though some programming knowledge is

Published: 2025-04-07 | Origin: /r/ruby

This content offers a curated list of resources designed to aid your learning journey, including non-instructional videos on tech, infrastructure, hardware, and software, as well as articles and tutorials related to software. It encourages engagement and support, inviting discussion on various topics. Specifically mentioned are resources on "Boolean vs Datetime" and "Quality Ruby Screencasts."

Published: 2025-04-07 | Origin: /r/programming

The author discusses how to write secure C code for curl, emphasizing that while there are no guaranteed solutions, there are guidelines to follow. They clarify that "curl" refers to "client," not the C programming language. Although they sometimes have security vulnerabilities, they actively work to fix them and test their code thoroughly using static analysis tools and fuzzers. They note that about 40% of their security vulnerabilities arise from using C, which is lower than the 60-70% reported by other projects

Published: 2025-04-07 | Origin: /r/programming

The author, an open-source maintainer and speaker, reflects on the traits of exceptional developers and shares insights for aspiring programmers. They emphasize the importance of understanding technologies at a fundamental level rather than just using them superficially. The author regrets not prioritizing reference documentation in their early career, advocating for direct engagement with official resources (like documentation) instead of relying on external sources like Stack Overflow or AI. They assert that great developers can interpret error messages and troubleshoot effectively by deeply understanding their tools, which enables

Published: 2025-04-07 | Origin: /r/programming

The author expresses a passion for concise and elegant tests in software development, emphasizing the importance of clarity and efficiency. They lament the common practice of mocking framework dependencies, deeming it not only unsightly but also detrimental in the long run. This approach leads to brittle tests, increased maintenance challenges, and integration issues. Citing the principle "Don't mock what you don't own" from the London School of Test-Driven Development, the author warns against mocking external code, as it can create outdated expectations and

Published: 2025-04-07 | Origin: /r/programming

A Message Queue is an asynchronous communication method used in distributed systems to facilitate message exchange between services while decoupling the sender and receiver. This enables reliable task execution (like email sending or data processing) even if some services are slow or down. Message queues are beneficial for managing high loads, enhancing reliability, and improving system scalability and resilience. They offer three delivery guarantees: at-most-once, at-least-once, and exactly-once, and can prioritize messages to ensure critical ones are processed

Published: 2025-04-07 | Origin: /r/ruby

In the article by Exequiel Rozas, the author discusses challenges that arise when an application depends on screen size, particularly when users resize their browser windows. While CSS media queries and container queries handle some of these issues, they may not be sufficient. To address this, the Resize Observer API is introduced as a modern JavaScript solution that allows developers to observe and respond to changes in the size of specific elements, rather than the entire window, making it more efficient. The Resize Observer API is preferable

Published: 2025-04-07 | Origin: /r/ruby

The newsletter dated April 7, 2025, authored by Vladut Cosmin and Lucian Ghinda, covers various updates in the Ruby community. Highlights include: - **Discounts and Launches**: - JustCrossPost, a cross-posting app for indie developers, is offering a 25% discount. It features a distraction-free editor, supports multiple platforms, and provides automatic media optimization. - Marco Roth launched the Ruby Events mobile app for Ruby-related events, available

Published: 2025-04-07 | Origin: /r/programming

The content discusses the importance of Architecture Decision Records (ADRs) in software development, particularly when transitioning from a monolithic architecture to microservices. It highlights a common scenario where team members forget the reasons behind key architectural decisions, leading to confusion and wasted time. ADRs serve as concise documents that capture the context, rationale, and trade-offs of critical design choices. By documenting these decisions, teams create a durable knowledge asset that helps avoid repetitive discussions and ensures new members can understand the evolution of the architecture

Published: 2025-04-07 | Origin: Hacker News

This content describes an app for iPhone/iPad that is a modern HTML5 canvas remake of the classic Atari game where players defend cities from attacks. Players can click or tap to fire missiles at targets and use special weapons by clicking their icons. The Space Bar pauses or resumes the game. It was developed by George Liu with assistance from AI models Google Gemini 2.5 Pro and Claude 3.7 Sonnet. A GitHub repository is also mentioned for the project.

Published: 2025-04-07 | Origin: Hacker News

The content highlights the importance of user feedback and invites contributions to the Dataphyre PHP framework, which powers the Shopiro global marketplace. Dataphyre is a versatile, high-performance framework suitable for a range of applications, from small prototypes to large-scale platforms. It enables impressive processing speeds, exemplified by Shopiro's product pages loading in just 25 milliseconds. Users are encouraged to improve the framework while adhering to its core principles, despite some documentation limitations. The text also mentions prerequisites for installation,

Published: 2025-04-07 | Origin: Hacker News

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Published: 2025-04-07 | Origin: /r/ruby

As applications grow, so do their database tables, which can lead to increased memory usage when fetching all columns, including large text or JSON fields. This post discusses strategies to optimize memory usage in Rails applications by querying only the necessary data from the database. Initially, it may be practical to use methods like Model.all or Model.where to retrieve full records. However, as new columns are added—such as a bio column containing large amounts of text—memory usage can quickly escalate. For example, adding bios