Published: 2025-08-19 | Origin: Hacker News

The content emphasizes the importance of user feedback and outlines a project aimed at upgrading conventional robotic lawn mowers to more advanced models using RTK GPS technology. The project involves enhancing a disassembled low-cost unit (YardForce Classic 500), which has been found to have decent hardware but lacks effective software. Key goals include achieving autonomous lawn mowing, ensuring safety features like emergency stop functions, and improving overall performance. Additionally, a person with a background in software engineering, robotics, and hardware design is seeking

Published: 2025-08-19 | Origin: Hacker News

Vitomir Maričić from Croatia has set a new Guinness World Record for the longest voluntary underwater breath-hold using oxygen, achieving a remarkable time of 29 minutes and 3 seconds. This record, set on June 14 in a 3-meter pool at the Bristol Hotel in Opatija, surpasses the previous record by over four minutes. Maričić pre-breathed pure oxygen before his attempt and laid on his back at the bottom of the pool, with five judges and

Published: 2025-08-18 | Origin: /r/programming

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Published: 2025-08-18 | Origin: Hacker News

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Published: 2025-08-18 | Origin: Hacker News

The content discusses feedback mechanisms and the development process for a minimal tensor processing unit (TPU) inspired by Google’s TPU V2 and V1. It outlines the TPU's instruction set architecture (ISA), which is 94 bits wide, and details how to set up a development environment for contributions to the open-source project. Instructions for adding new modules, creating test files, and generating waveforms are provided. The document emphasizes its goal of being an accessible resource for those interested in building chip accelerators

Published: 2025-08-18 | Origin: /r/programming

The content by Tom Renner discusses the various methodologies in software development, including TDD, BDD, Agile, and others, emphasizing that there isn’t a one-size-fits-all approach. Renner argues that practices that work well for small teams may not be effective for larger organizations, highlighting that interpersonal dynamics and team alignment are crucial for successful software production. He notes that challenges in delivering software often stem from people-related issues rather than technical obstacles. To illustrate this, he presents a scenario where team

Published: 2025-08-18 | Origin: Hacker News

The author expresses a dislike for Python's list comprehensions due to their poor ergonomic support in editors, which can hinder the programming experience. They argue that the syntax does not allow editors to offer helpful autocompletions or validate function calls because variable declarations are not immediately clear. This leads to frustration when accessing methods like `split()` on undeclared variables. In contrast, the author provides a Rust example to illustrate a better experience. In Rust, the declaration of a variable allows the editor to immediately offer

Published: 2025-08-18 | Origin: Hacker News

The content emphasizes that all feedback is carefully considered and taken seriously. It also directs users to the documentation for a list of available qualifiers. Additionally, there are repeated error messages indicating issues with loading the page, suggesting users reload it.

Published: 2025-08-18 | Origin: Hacker News

The SVG `<path>` element can be challenging to understand initially, similar to Regex, but it is highly functional and allows for the creation of curved shapes in SVG beyond simple ellipses. This blog post aims to explain the basic commands of the `<path>` element, including the arc command, and help readers develop an intuition for its use, making it enjoyable for web developers of all skill levels who understand SVG fundamentals. The `<path>` element mirrors the “pen” tool in vector graphic software,

Published: 2025-08-18 | Origin: Hacker News

The text emphasizes the importance of user feedback and mentions that input is seriously considered. It provides a list of various Golang SQLite drivers used for benchmarking, detailing whether each one is a CGO-based solution or a pure Go solution, as well as its status as a database/sql driver. The noted libraries include bvinc, craw, eaton, glebarez, mattn, modernc, ncruces, sqinn, and zombie. The benchmarks were conducted on August 17, 202

Published: 2025-08-18 | Origin: Hacker News

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Published: 2025-08-18 | Origin: /r/programming

The content discusses the challenges of debugging mutable data, illustrated by a bug where the last_modified date of entities was consistently one day off. The issue stemmed from using a mutable DateTime object, where changes to the `$now` variable also affected `$entity->lastModified` due to both pointing to the same object. If a DateTimeImmutable object had been used, it would have returned a new instance without altering the original, thereby preventing the bug. The author emphasizes the advantages of immutable objects over

Published: 2025-08-18 | Origin: /r/programming

The content discusses the relationship between streaming pipelines and programming language compilers, emphasizing a fundamental principle of separation between declaration and execution. While a streaming pipeline may appear like a simple order processing system, it actually creates a description of intended operations. A compiler then optimizes this description into executable code tailored for specific environments. This principle is important in programming languages like C, where the compiler optimizes operations beyond a straightforward translation. The text highlights JavaScript's ecosystem, noting that Node.js utilizes efficient streams, which

Published: 2025-08-18 | Origin: /r/programming

The main argument is that many application failures stem from impossible states in the model rather than complex algorithms. Examples of these nonsensical states include "a user without an email but verified" or "an order that is both shipped and cancelled." To combat this, typed functional programming languages like Elm, Haskell, and F# provide a means to define domain rules directly within their type systems, allowing the compiler to prevent the creation of these impossible states from the outset. Scott Wlaschin’s concept of

Published: 2025-08-18 | Origin: /r/programming

Staff+ engineers are absorbed into a complex system where understanding context is crucial to success. Their role transcends coding and involves navigating intricate organizational dynamics, recognizing decision-making processes, and identifying sources of influence. The foundation of staff engineering is built on three pillars: big-picture thinking, project execution, and empowering others. The content emphasizes the importance of understanding management principles, even for individual contributors, as this knowledge enhances collaboration across the organization. It warns against becoming reactive to urgent tasks and encourages strategic thinking by building

Published: 2025-08-18 | Origin: /r/ruby

The article discusses P2, a new HTML templating library for Ruby that stands out by compiling template source code into efficient Ruby code for generating HTML. Unlike traditional templating approaches, where the code runs directly, P2 treats the code as a description, which is then compiled and executed. While other Ruby gems like Phlex, Papercraft, and Ruby2html offer similar functionality, P2 is noted as the first to implement this technique exclusively. The author explains performance enhancements made to P2

Published: 2025-08-18 | Origin: Hacker News

The author attributes their good handwriting not to their Catholic school education but to their engineer mother, whose perfect print and cursive inspired them as a child. However, as an adult reporter, they note that speed has become more important than neatness in note-taking, and handwriting skills are diminishing due to reliance on keyboards and technology. The shift from handwriting to typing in schools has been accelerated by the rise of digital devices, leading some to believe that handwriting is on the decline. Despite this, the author argues

Published: 2025-08-18 | Origin: /r/ruby

The content discusses a Ruby on Rails gem for creating charts using the Apache eCharts library (version 5.4.0). This gem allows users to construct various types of charts with minimal code, inspired by the Chartkick gem, but offers more customization options. Users can easily integrate it into their applications by adding the gem to their Gemfile and following installation instructions. The documentation provides links to available options, examples, and configuration settings. The gem aims for ease of use with default settings for tool

Published: 2025-08-18 | Origin: Hacker News

The ACCC has warned the public about scammers using its phone numbers to solicit personal information and clarified that it does not make calls from its reception numbers. If you receive such a call, do not provide any information and hang up. In legal news, the ACCC has initiated Federal Court proceedings against Google Asia Pacific for anti-competitive agreements made with Telstra and Optus regarding the exclusive pre-installation of Google Search on Android phones. Google has admitted to liability and has agreed to pay a penalty

Published: 2025-08-18 | Origin: /r/ruby

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