Published: 2025-04-17 | Origin: /r/ruby

The content discusses implementing IP restrictions in a Rails application to allow corporate customers to whitelist specific IPs for their accounts. The approach involves storing the whitelisted IPs in a database due to the account-specific and optional nature of the requirement. While a simple solution using a `before_action` is considered, it poses performance issues since it requires querying the database for every request. To address performance concerns, caching the whitelisted IPs in Redis or Memcache is suggested, reducing database overhead and improving scalability.

Published: 2025-04-17 | Origin: Hacker News

3FS (Fire-Flyer File System) is a distributed filesystem released by DeepSeek as part of their open-source release week on April 15, 2025. The blog highlights how distributed filesystems create an illusion for applications, making them function as if they are interacting with a standard local filesystem, despite the data being spread across multiple machines. This abstraction allows users to access files seamlessly, without needing to manage the complexity of underlying network calls or numerous storage devices. Distributed filesystems excel in

Published: 2025-04-17 | Origin: /r/programming

UTM is an application that allows users to run alternative operating systems, such as Windows or Linux, on iPhones and iPads, but not iOS on other systems. This guide focuses on using UTM virtual machines (VMs) to set up Linux development environments on Apple Silicon devices. To begin, install UTM and necessary tools using Homebrew. You'll also need to obtain cloud images from sources like Fedora and Ubuntu for the VM. The setup involves creating an `init.iso` file

Published: 2025-04-17 | Origin: Hacker News

The content is about a one-time password (OTP) verification system. Users can resend the OTP after a countdown of 30 seconds if they did not receive it, with an option to resend it. Additionally, there is information regarding a webhook URL for sending updates, and users can subscribe to receive notifications via email and text message for issues with Zoom services, including updates on incidents and resolutions.

Published: 2025-04-17 | Origin: Hacker News

The author shares their journey of finding a replacement for Spotify after deciding to stop using the service, ultimately landing on Jellyfin. Initially, they started by gathering music files on their computer and attempted to use various music players but found them inadequate for managing a large library or creating playlists. They briefly used VLC but encountered issues with FLAC files. After experimenting with foobar2000, which proved too complex to set up, they created a simple web music player to stream their library from a local server.

Published: 2025-04-16 | Origin: /r/ruby

The content describes a next-generation HTML+ERB parser designed to enhance developer tooling for Ruby applications. Key features include: - Intelligent recognition of HTML structures interwoven with Ruby code in ERB templates. - Built on Prism, the new default Ruby parser as of Ruby 3.4, which is known for being error-tolerant and widely adopted by major Ruby runtimes (CRuby, JRuby, TruffleRuby). - Graceful error handling that provides accurate parsing results even with syntax errors

Published: 2025-04-16 | Origin: Hacker News

Failed to fetch content - HTTP Status - 401

Published: 2025-04-16 | Origin: /r/programming

The feedback emphasizes the importance of user consent regarding the use of Copilot in private repositories. The user expressed concern that Copilot was enabled across all VSCode windows without their permission, potentially exposing sensitive information. They highlighted that they had only consented to use Copilot in two specific windows, while the rest should remain disabled, especially since some projects are for clients who have not approved sharing the code. The user urges for this issue to be resolved to ensure that GitHub Copilot respects workspace settings and

Published: 2025-04-16 | Origin: /r/programming

Abdu Taviq shares an experience of being a victim of a hacking attack while working on a self-hosted WordPress multi-tenancy solution. He deployed his project on a staging server with a long, obscure URL. Shortly after deployment, he received a notification from Google Search Console flagging his server for phishing activities, which he later discovered was due to a hacker exploiting it. Additionally, as a consequence, some of his YouTube videos were removed because they included the same domain used for testing

Published: 2025-04-16 | Origin: Hacker News

Plandex is a terminal-based AI development tool designed for handling large coding projects and complex tasks. It supports up to 2 million tokens of context and can index projects with over 20 million tokens using tree-sitter project maps. Key features include a cumulative diff review sandbox that isolates AI-generated changes until they're ready to be integrated, robust support for multiple AI models (from Anthropic, OpenAI, Google, and others), and a high degree of flexibility for developers. Plandex can autonom

Published: 2025-04-16 | Origin: /r/ruby

Failed to fetch content - HTTP Error - Failed to open TCP connection to :80 (Connection refused - connect(2) for nil port 80)

Published: 2025-04-16 | Origin: /r/programming

CyberInsider reports on a surge in cyberattacks that exploit Node.js to deliver malware and compromise sensitive information. Microsoft's Defender Experts have identified several campaigns since October 2024 that use Node.js in innovative ways to evade detection, particularly in malvertising and phishing schemes. Attackers take advantage of Node.js's capabilities as an open-source JavaScript runtime, allowing them to execute code outside of traditional browser environments, making it easier to blend in with legitimate developer activities. One notable campaign involves deceptive cryptocurrency

Published: 2025-04-16 | Origin: Hacker News

In the January 23, 2025 edition of the newsletter "Plenty of Room," Marco Lolaico highlights the use of AI in designing proteins to address the serious public health issue of snakebites, which predominantly affect regions like sub-Saharan Africa, South Asia, and Latin America. The World Health Organization categorizes snakebite envenoming as a neglected tropical disease that impacts 2 million people annually, resulting in over 100,000 deaths and many disabilities. Traditional antivenom treatments

Published: 2025-04-16 | Origin: Hacker News

The content discusses the Codex CLI, a lightweight coding agent that operates in the terminal and is currently in experimental development. Users can install it globally using the command `npm i -g @openai/codex` and should set their OpenAI API key as an environment variable for usage. The tool allows developers to run code, manipulate files, and manage their projects under version control, facilitating a chat-driven development experience. Codex CLI is designed for developers familiar with terminal environments and offers customizable levels

Published: 2025-04-16 | Origin: /r/programming

The U.S. government has extended funding for MITRE to prevent any disruption to the crucial Common Vulnerabilities and Exposures (CVE) program, as confirmed by CISA. This extension, lasting 11 months, came after MITRE's Vice President warned that funding was set to expire, which could have led to significant issues in the cybersecurity sector. The CVE program, which is essential for standardizing discussions about security vulnerabilities, is maintained by MITRE with support from the U.S.

Published: 2025-04-16 | Origin: /r/ruby

The article by Roman Samoilov, Tech Lead at SoftServe, introduces Rage, a Ruby web framework aimed at creating fast and developer-friendly APIs. Rage seeks to modernize the Ruby ecosystem by offering a syntax similar to Rails while emphasizing asynchronous I/O, performance, and easy OpenAPI documentation generation. The article outlines a tutorial for building a shared Todo list application using Rage. It covers the necessary steps, starting from project setup with SQLite, generating models and migration files, and defining data relationships. It

Published: 2025-04-16 | Origin: Hacker News

The content discusses the "Damn Vulnerable Model Context Protocol" (DVMCP), an educational project that intentionally presents vulnerabilities within the Model Context Protocol (MCP). It features 10 progressively challenging scenarios aimed at highlighting different security weaknesses and attack vectors relevant to MCP implementations. The project serves as a learning tool for security researchers, developers, and AI safety professionals. Additionally, it provides resources such as setup guides, challenge descriptions, and solution guides, encouraging users to first attempt the challenges independently before

Published: 2025-04-16 | Origin: /r/programming

The author reflects on a recent blog post about hash tables and discovers a new technique called "Fibonacci Hashing" from a comment by Rich Geldreich. Despite their extensive experience with hash tables, the author realizes that Fibonacci Hashing is a significant improvement over traditional methods, which often use prime number sizes and integer modulo for slot mapping. They argue that Fibonacci Hashing is not widely adopted, leading to slower performance in large hash tables, including common implementations like std::unordered_map. The author notes that

Published: 2025-04-16 | Origin: /r/programming

Janne Hellsten's post from August 18, 2019, summarizes a coding competition focused on creating a minimal C64 executable that draws two lines to form a specified image. Participants submitted their programs (PRG files) along with the byte-length and an MD5 hash, shared via Twitter replies and direct messages. The post provides a participant list with links to their source codes and highlights various coding tricks used in the submissions, especially those relevant to 6502 assembly language. The C64

Published: 2025-04-16 | Origin: /r/programming

IntelliJ IDEA 2025.1 introduces comprehensive support for Java 24 and makes K2 mode the default for an enhanced Kotlin development experience. Key features include enhanced debugging capabilities, powerful code completion, and the integration of JetBrains AI, which now offers free access to various AI tools within the IDE under a streamlined subscription model. This version boosts productivity with smarter code completion and support for new cloud models, while also integrating stable tools like stream gatherers into the workflow. Overall, the update focuses