Published: 2026-03-31 | Origin: Hacker News

Raincast is an AI-powered desktop application generator that allows users to create fully functional, shippable Tauri applications through simple natural language descriptions. The app automatically generates the necessary components, including a React frontend and a Rust backend, along with system integration. During development, Raincast provides a live preview feature using a proxy binary that mimics the real app's behavior, enabling file system access and other functionalities before the final compilation. When the user is ready to ship, Raincast compiles the

Published: 2026-03-31 | Origin: Hacker News

TimesFM (Time Series Foundation Model) is a pretrained model developed by Google Research specifically for time-series forecasting. The latest version, TimesFM 2.5, includes updated features such as covariate support through XReg, along with an upgraded inference API. This open version is not officially supported by Google. Users are encouraged to check the documentation for available qualifiers and to clone the repository, create a virtual environment, and install dependencies. Additionally, it is noted that there were errors during the loading

Published: 2026-03-31 | Origin: /r/programming

On March 31, 2026, the Socket Research Team reported a supply chain attack that affected Axios, a widely used HTTP client with 100 million weekly downloads. This attack introduced a malicious dependency called [email protected], which was confirmed to be harmful. The malicious package has a multi-stage payload, including a remote access trojan (RAT) that can execute commands, exfiltrate data, and persist on infected machines. The compromised version of Axios does

Published: 2026-03-31 | Origin: /r/programming

The content outlines a security protocol for managing software dependencies in development processes, emphasizing features such as scanning and governing dependencies across pull requests and builds, blocking malicious packages at installation, and generating AI-enriched Bill of Materials (BOMs) based on actual code evidence. It highlights the importance of monitoring AI coding agents' actions and implementing guardrails to prevent malicious code from entering the software development lifecycle (SDLC). A specific incident is described involving two compromised versions of the Axios package (1.14

Published: 2026-03-31 | Origin: Hacker News

The preview discusses the enhanced performance of Ollama on Apple silicon, utilizing Apple's MLX machine learning framework. This integration significantly accelerates tasks on macOS, including improvements for coding agents and response times for OpenClaw. Key benefits include: - Increased speed for all Apple Silicon devices, particularly with M5 series chips utilizing GPU Neural Accelerators. - Enhanced prefill and decode performance for models like Alibaba’s Qwen3.5-35B-A3B, achieving high token generation rates.

Published: 2026-03-31 | Origin: Hacker News

On March 30, 2026, StepSecurity discovered two malicious versions of the popular axios HTTP client library ([email protected] and [email protected]) published on npm using the compromised credentials of a lead maintainer. The attacker changed the maintainer's email to an anonymous address and bypassed normal CI/CD processes to manually publish these versions. The malicious packages introduced a fake dependency, [email protected], which is not

Published: 2026-03-31 | Origin: Hacker News

NASA's Artemis II mission aims to send four astronauts around the moon, marking the second flight of the Space Launch System (SLS) rocket and the first crewed mission of the Orion capsule. However, significant concerns have been raised regarding the heat shield on the Orion capsule, which suffered considerable damage during the uncrewed test flight in 2022, with large pieces blowing off during re-entry. Initial reactions from NASA included a reluctance to disclose the full extent of the problem, leading to misleading

Published: 2026-03-31 | Origin: /r/programming

The post explains the behind-the-scenes process of how emails are sent and received daily. It introduces key terms related to email handling, which will be explored in detail later. A mail server is a critical component that processes emails: when John sends an email from his Gmail to Kevin's Yahoo account, the Gmail server processes it, checking for spam and validating it using DKIM, DMARC, and SPF protocols for authentication. Once validated, the email is transferred to the Yahoo mail server for delivery to Kevin

Published: 2026-03-31 | Origin: /r/ruby

The author discusses recent developments with the Fast gem, emphasizing the importance of Abstract Syntax Trees (ASTs) for code exploration and the refactoring of a Rails codebase. A new challenge arose in making the tool suitable for AI agents, especially when dealing with large code files, which can exceed token limits and become unwieldy for AI to process. The goal was to create a lightweight "skeleton" of a file, capturing essential structures like class definitions and methods without unnecessary inner code. The author

Published: 2026-03-31 | Origin: Hacker News

The content emphasizes the importance of user feedback and outlines a tool, CLAUDE.md, designed to reduce the verbosity of Claude's outputs by approximately 63% without requiring code changes. While most costs associated with using Claude stem from input tokens, this file specifically targets excessive output behavior such as sycophancy and formatting issues. Users are informed that the tool is compatible with Claude but may also work with other models, though results are untested. By dropping the CLAUDE.md file into

Published: 2026-03-31 | Origin: /r/ruby

In Chapter 2 of Sandi Metz's "Practical Object-Oriented Design, An Agile Primer Using Ruby," the author discusses the importance of designing classes with a single responsibility. Using the example of a bicycle gear, Metz highlights an initial piece of code that calculates a gear ratio but lacks object-oriented principles. She advocates for encapsulating behavior into abstractions that accurately represent concepts in the application's domain, suggesting the class could be more clearly named "GearRatio." Swett reflects on his initial intuition that

Published: 2026-03-30 | Origin: /r/programming

Rust's compiler team is near completion on a significant project to rewrite the trait solver, a component that determines which function to call for trait methods implemented across multiple types. This rewrite aims to simplify future modifications to the trait system, resolve several challenging soundness bugs, and enhance compile times. Traits in Rust, akin to Haskell's typeclasses or Java's interfaces, define a set of functions applicable to various types. When generating code, the compiler must identify the specific type and its trait implementation to

Published: 2026-03-30 | Origin: Hacker News

On March 30, 2026, Android announced the rollout of a new security feature called Android developer verification to enhance user safety against malware, particularly from sideloaded apps, which pose a significantly higher risk than those from Google Play. This initiative follows extensive community feedback and aims to balance the platform’s openness with security. The Android Developer Console and Play Console will allow developers to verify and register their apps, with user-facing changes expected later in the year. Initial protections will launch in Brazil,

Published: 2026-03-30 | Origin: /r/ruby

The content discusses the integration of a thread-safety analysis extension for RuboCop, including installation and usage instructions. Users are encouraged to provide feedback, and the importance of thread safety in projects is emphasized. The installation involves adding specific lines to the Gemfile and the .rubocop.yml file, with mentions of compatible RuboCop versions. It highlights the need for avoiding unsynchronized state mutations in multi-threaded environments and suggests configuration options to enhance the effectiveness of thread-safety checks. Additionally, it

Published: 2026-03-30 | Origin: Hacker News

The recent release of the White House app has raised privacy concerns due to its extensive permissions and embedded tracking software, including a sanctioned Chinese tracking SDK. The app, marketed for direct access to the Trump administration, requests detailed personal information and permissions, such as precise GPS location and biometric access, while lacking a specific privacy policy addressing these tracking features. Other federal agency apps likewise have alarming permissions; for example, the FBI app requests 12 permissions, including Wi-Fi scanning and storage modification, and contains multiple

Published: 2026-03-30 | Origin: /r/ruby

For over eight years, the team has published comprehensive guides on upgrading Rails applications, documenting every minor version from Rails 2.3 to 8.1. They have compiled their expertise into an ebook titled "The Complete Guide to Upgrade Rails" and have dedicated over 60,000 developer-hours to working on upgrades for various companies, from startups to large Fortune 500 firms. To further share their knowledge, they have made their Rails upgrade methodology open source through a Claude Code skill designed to assist

Published: 2026-03-30 | Origin: /r/programming

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Published: 2026-03-30 | Origin: /r/programming

The Haskell Blog editors are launching a new article series titled "Haskellers from the Trenches," featuring experienced engineers sharing insights on their expertise, best practices, and experiences in production. This initiative aims to blend engineering rigor with artistic creativity in the Haskell community. The author reflects on their journey with Haskell, which began at age sixteen, drawn by its promise of eliminating null pointer exceptions and enhancing software reliability through a strong type system. With nearly two decades of experience in Haskell, they

Published: 2026-03-30 | Origin: /r/programming

The content discusses the misconceptions surrounding Data Lakes, particularly the belief that "joins are expensive." This misconception leads many to prefer transforming data into flat tables for user access, under the assumption that it reduces CPU usage compared to performing joins each time. While object stores facilitate high I/O and storage capabilities, the author questions whether this truly justifies sacrificing disk space to save CPU costs associated with joins. To explore this, the content presents two competing data models: one representing a flat table and the other a dimensional

Published: 2026-03-30 | Origin: /r/programming

In this chapter, the focus is on types and their significance in programming languages and mathematical theory. While types are often understood in the context of programming, they also form the basis of type theory, which serves as an alternative foundation to set theory and category theory in mathematics. The chapter notes that many discussions about mathematical objects begin with sets due to their simplicity and familiarity. This "set-centric" viewpoint is widespread because sets are easy to grasp, as they represent unified groups of items or concepts. The author