Published: 2025-07-27 | Origin: /r/programming

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Published: 2025-07-27 | Origin: /r/programming

Ivory is an open-source tool designed to simplify and visualize work with Postgres clusters, offering a management UI for Patroni and a query builder. Aimed at assisting both developers and database administrators, it can be used locally or on a virtual machine for collaborative work. Users are encouraged to provide feedback and support the project by giving it a star, helping increase its visibility and motivate further improvements. However, Ivory does not guarantee backward compatibility across major or minor releases, which may necessitate fresh installations.

Published: 2025-07-27 | Origin: Hacker News

This online ruler allows for instant calibration by entering your screen's diagonal size or using full calibration options. It works on any desktop or mobile device without installation, automatically detecting screen sizes to display accurate measurements in cm or inches. If detection fails, users can manually enter their screen size or calibrate using a standard credit card (85.60 mm / 3.37 in width) for precision. The ruler is compatible with a wide range of devices and browsers, and users can select their exact device model

Published: 2025-07-27 | Origin: Hacker News

Aspiring Minerals, a New Zealand-based company, is pioneering a pilot plant that transforms olivine, a common yet economically undervalued rock, into valuable materials. Olivine, primarily a magnesium iron silicate, is typically associated with limited uses like gemstones and gravel but is not considered a viable source for battery materials. However, Aspiring Minerals has developed a patented chemical process that efficiently extracts multiple valuable minerals from olivine, including nickel-manganese-cobalt hydroxide, which is

Published: 2025-07-27 | Origin: Hacker News

The content discusses the evolution and choices in data storage, specifically the transition from traditional hard disk drives (HDDs) to solid-state drives (SSDs) due to their superior speed, particularly for random I/O operations. It highlights the concept of caching data on SSDs while using HDDs for larger storage, which was previously implemented in solid-state hybrid drives (SSHDs) and supported by file systems like ZFS. However, with declining SSD prices, reliance on HDDs has become less

Published: 2025-07-27 | Origin: Hacker News

Bosch Sensortec has introduced the BMV080, the world’s smallest PM2.5 air quality sensor, measuring just 4.2 x 3.5 x 3 mm³. This fanless and maintenance-free device delivers accurate, real-time particulate matter data, crucial for health as indoor air can be three to five times more polluted than outdoor air. PM2.5 particulates, which are smaller than 2.5 μm, can cause serious health issues when inhal

Published: 2025-07-27 | Origin: Hacker News

iPhone USB-C cases are now available, but all initial batches have sold out. Interested customers can sign up for email alerts for restocks, with priority given to models with higher sign-up numbers. The case allows users to convert their iPhone to USB-C quickly, without needing a new device, while supporting wireless and MagSafe charging. It also supports fast charging and data transfers, although certain accessories requiring power through the phone will need the case removed. The cases are made in Switzerland using durable Nylon

Published: 2025-07-26 | Origin: Hacker News

QuickTunes is a fast and easy-to-use Apple Music client for macOS, designed to emulate the simplicity of early 2000s music players like the iPod. The app allows users to navigate through their music library effortlessly, featuring smooth scrolling, keyboard navigation, and multi-touch gestures. It includes a dynamic floating player for controlling playback and a customizable interface. Users can search for songs, albums, or playlists quickly with a Spotlight-style search function. QuickTunes is compatible with macOS 15 "

Published: 2025-07-26 | Origin: Hacker News

The aviation industry is facing economic stagnation, despite improvements in airline travel affordability and safety. Historical advancements, like supersonic travel, have regressed, and personal aviation—where individuals pilot their own aircraft—has also declined, leading to questions about the practicality of aviation as personal transport. The Federal Aviation Administration (FAA) is addressing some of these issues through its new MOSAIC rulemaking for light-sport aircraft, which is seen as a potentially transformative step for personal aviation. While the FAA

Published: 2025-07-26 | Origin: Hacker News

In a blog post dated July 26, 2025, the author advocates for a "runtime resizable struct" concept in the Zig programming language and proposes an API leveraging Zig's comptime features. The post notes that while Zig offers various collection types, they generally rely on two primary structures for contiguous data storage: arrays and many-item pointers (slices). Slices, which offer limited flexibility since their memory cannot be resized post-allocation, are supplemented by std.ArrayList for dynamic resizing.

Published: 2025-07-26 | Origin: /r/programming

The Linux kernel community has announced new AI contribution guidelines proposed by Sasha Levin, a long-time contributor and NVIDIA employee. These guidelines aim to facilitate the involvement of AI coding assistants in kernel development, addressing issues of documentation, attribution, and contribution etiquette. As AI tools increasingly write patches, the community seeks to manage this reality rather than ignore it. However, a critical concern arises regarding junior contributors in the open source ecosystem. Traditionally, senior developers have been encouraged to leave simpler tasks open for newcomers, fostering mentorship

Published: 2025-07-26 | Origin: /r/ruby

The article discusses the evolution of logging in Rails applications, highlighting that while many developers have moved to structured logging with tools like Lograge or Semantic Logger, there remains a challenge in tracking business events such as user signups and order completions. Currently, developers often resort to custom solutions or various tools that do not effectively meet their needs. To address this, Rails is working on a native event reporting system, which would integrate event tracking directly into the framework. This system, referred to as Rails.event,

Published: 2025-07-26 | Origin: /r/programming

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Published: 2025-07-26 | Origin: Hacker News

In April 2025, Microsoft updated Copilot Enterprise to include a live Python sandbox utilizing Jupyter Notebook, enabling code execution in the backend. The sandbox allows easy execution of predefined commands using Jupyter syntax. However, the assistant's responsiveness can vary based on its 'mood', likened to that of a child — sometimes enthusiastic, and other times reluctant or overly explanatory. The sandbox operates under the 'ubuntu' user in a miniconda environment, which is part of the sudo group, although

Published: 2025-07-26 | Origin: /r/programming

The content is an introduction to a guide aimed at optimizing slow queries in Postgres databases by utilizing indexing. It emphasizes that many slow queries can be improved simply by adding the appropriate indexes. The guide promises to help users detect, prioritize, and create the necessary indexes using core catalog views and SQL, without needing any additional extensions. The phrase “Most slow queries are just an index away from being fast” encapsulates the main takeaway.

Published: 2025-07-26 | Origin: /r/programming

The article discusses the challenges of implementing anti-aliasing with Signed Distance Functions (SDFs). While many practitioners use various methods, including hardcoded constants and complex formulas, the topic is more nuanced than it appears. An SDF is defined as a function (or a texture lookup) that returns the signed distance from a point to a shape, indicating if the point is inside or outside. The author emphasizes the importance of understanding the conventions used for SDFs, particularly the sign representation of points

Published: 2025-07-26 | Origin: /r/programming

Idempotence is a key concept in system design, meaning that performing an operation multiple times yields the same result as performing it once. For example, pressing an "on" or "off" button is idempotent; pressing "on" multiple times keeps the machine on, and similarly for "off." In programming, idempotency is about the effect on state rather than the response status code. A common misunderstanding is that the response can indicate non-idempotency, but it’s the result

Published: 2025-07-26 | Origin: /r/ruby

The content recounts an idea conceived during RailsConf 2025 about creating a "Passive Job" library that serves as a queue backend for Rails applications. The authors, inspired by ongoing discussions about optimizing job processing in Rails, propose the concept of "Passive Queue" that aligns with existing tools like ActiveJob, yet focuses on non-execution rather than performance. It suggests that the best job is one that is never executed, advocating for a more relaxed and contemplative approach to software development. The concept

Published: 2025-07-26 | Origin: /r/programming

The provided content appears to be a fragment of a PDF file, likely including binary data and stream information along with some encoded or compressed text. The text contains encoded characters and symbols, indicating it is not meant to be read in a conventional manner but rather processed by software that can handle PDF formats. This type of content typically includes metadata, graphic instructions, and potentially various document elements, but due to its binary nature and usage of compression (like FlateDecode), it cannot be summarized in a straightforward way

Published: 2025-07-26 | Origin: /r/programming

The author reflects on their enjoyment of the Discworld novels, particularly the character Rincewind, who faces a paradoxical situation regarding his exam scores. Rincewind must attain an exact score to continue receiving his father's financial support while avoiding being considered a passing wizard by the university. This ironic scenario illustrates that to be "lazy" (by not passing), he must put in more effort studying than if he were to simply pass the exam. The author connects this theme to the concept of laziness as