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Systemd’s Nuts and Bolts - A Visual Guide to Systemd

Published: 2025-07-17 | Origin: /r/programming

The content is an introduction to a deep dive into systemd, specifically aimed at intermediate and advanced Linux users and sysadmins. It highlights the importance of D-Bus (Desktop Bus), which is a crucial yet often overlooked component of systemd, serving as a high-level IPC (Inter-Process Communication) mechanism. The guide focuses on understanding systemd from its internals first before reaching the user interface, promising rewarding insights for those who persevere. However, readers needing quick familiarity with systemd are

“Reading Rainbow” was created to combat summer reading slumps

Published: 2025-07-17 | Origin: Hacker News

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I was wrong about robots.txt

Published: 2025-07-17 | Origin: Hacker News

The author of the article discusses their experience with modifying their robots.txt file to prevent crawlers from accessing their website, resulting in unintended consequences. After implementing the change, they noticed that LinkedIn posts no longer displayed article previews and that engagement from connections decreased. Initially confused about the issue, the author discovered through LinkedIn Post Inspector that the new robots.txt directive blocked LinkedIn's bot from scraping their web pages. This prevented access to necessary meta tags for generating link previews, specifically Open Graph meta tags,

Perfume reviews

Published: 2025-07-17 | Origin: Hacker News

The content discusses the exploration of various "avant-garde" perfumes through samplers, sharing personal preferences regarding which scents were appealing and which were not. Ultimately, the author decided to purchase two perfumes: Acqua di Sale and Kyoto Incense.

Software is Never Done: Embracing Constant Evolution and Change will Result in a Better System

Published: 2025-07-16 | Origin: /r/programming

The content discusses the dynamic nature of software engineering, emphasizing that software systems are constantly evolving rather than being static entities. Unlike a bicycle, which can be maintained with minimal changes, software requires ongoing updates to meet changing user expectations and usage patterns. For instance, the transition from desktop to mobile has necessitated major overhauls in many software projects. As software developers embrace the concept of continual evolution, they adopt different design principles. Instead of rigid linkages, they favor creating APIs with well-defined contracts

Show HN: A 'Choose Your Own Adventure' written in Emacs Org Mode

Published: 2025-07-16 | Origin: Hacker News

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RailsConf inspired me to build something new

Published: 2025-07-16 | Origin: /r/ruby

Joe Masilotti, known as "The Hotwire Native guy," shares insights from the last RailsConf, a significant event for the Ruby community. The conference, held in Philadelphia, attracted over 800 attendees, energizing Masilotti to embark on new projects. He conducted a well-attended workshop on Hotwire Native and gathered valuable insights from various talks. Notably, Alicia Rojas clarified the distinction between authentication and authorization, while Edy Silva's presentation inspired Masilotti to achieve offline

I want an iPhone Mini-sized Android phone (2022)

Published: 2025-07-16 | Origin: Hacker News

Eric Migicovsky, an enthusiast for small phones, has launched the Small Android Phone project, aiming to pressure manufacturers like Google and Samsung to create premium devices with screens smaller than 6 inches. He expresses frustration over the lack of options in this category, especially since Sony discontinued its Xperia Compact line. Migicovsky is rallying fellow small phone fans to join the cause, emphasizing the need for at least 50,000 committed buyers to persuade a manufacturer to produce such a phone. He outlines important

RailsConf 2025 Takeaways: It’s fun to have fun

Published: 2025-07-16 | Origin: /r/ruby

The author of the blog post attended RailsConf 2025, describing it as a significant career highlight filled with learning and networking opportunities. A key highlight was meeting DHH, who emphasized the importance of simplicity and developer happiness in web development, specifically within the Rails framework. DHH pointed out that while JavaScript and CSS have become simpler, there's an over-reliance on cloud services and slow build times in infrastructure. He praised the Rails tool Kamal for facilitating easier deployments. The second day featured

How AI Vibe Coding Is Destroying Junior Developers' Careers

Published: 2025-07-16 | Origin: /r/programming

The tech industry is seeing a significant downturn in 2025, with over 94,000 layoffs impacting 150 companies. Junior developers are particularly affected, as job openings for software developers in the U.S. have plummeted by more than 70%. In response, many new developers are turning to a concept called "vibe coding," which involves using AI to create applications without requiring traditional coding skills. This trend leads to a generation of developers who lack foundational coding knowledge, relying on AI for

Matterport walkthrough of the original Microsoft Building 3

Published: 2025-07-16 | Origin: Hacker News

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Crawling a billion web pages in just over 24 hours, in 2025

Published: 2025-07-16 | Origin: /r/programming

The author reflects on the current state of web crawling, noting that although significant technological advancements have occurred since Michael Nielsen's 2012 post—such as more powerful CPUs, faster storage with NVMe drives, and expanded cloud computing options—challenges have also increased due to the rise of dynamic and content-heavy websites. To explore these changes, the author built and ran their own web crawler under specific constraints: a 24-hour runtime target (aiming to crawl a billion pages in a day) and

Scalability is not performance

Published: 2025-07-16 | Origin: /r/programming

The content differentiates between scalability and performance, emphasizing that they are not the same. It introduces a simplified model to illustrate this, focusing primarily on throughput, as reducing latency is challenging and yields diminishing returns. In this model, "Jobs" represent tasks performed by servers, while "Boxes" represent units like VMs, containers, or processes that handle these jobs. The basic premise is that with one Box, performance metrics such as latency and throughput are directly linked, but adding more Boxes increases capacity and

Grace Hopper: Who Made Programming Possible For Everyone, Everywhere

Published: 2025-07-16 | Origin: /r/programming

Before the advent of user-friendly programming, software development was complex and limited to those proficient in machine codes and low-level instructions. Grace Hopper envisioned a simpler approach where programming could be done in plain English. This perspective revolutionized human-computer interaction, making programming more accessible. While Corrado Böhm theoretically developed the first compiler in 1951, it was Hopper's practical implementation in 1952 that made a significant impact. Her creation of the A-0 System, the first practical compiler, allowed

Ex-Waymo engineers launch Bedrock Robotics to automate construction

Published: 2025-07-16 | Origin: Hacker News

Bedrock Robotics, a startup founded by former Waymo and Segment employees, has announced an $80 million funding round led by Eclipse and 8VC. The company has been developing autonomous vehicle technology aimed at retrofitting existing construction and worksite vehicles with a self-driving kit. Co-founder and CEO Boris Sofman emphasized that the technology will enable vehicles to adapt to project goals and changing conditions, allowing for continuous operation. Sofman, previously involved in Waymo's self-driving trucks initiative and as a

Hungary's oldest library is fighting to save books from a beetle infestation

Published: 2025-07-16 | Origin: Hacker News

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Altermagnets: The first new type of magnet in nearly a century

Published: 2025-07-16 | Origin: Hacker News

Researchers have discovered a new type of magnet called "altermagnets," which represents the first significant advancement in magnetism in nearly a century. Inspired by artwork, Libor Šmejkal, a key figure behind this discovery, proposed the existence of altermagnets in 2022, challenging the long-standing belief that only two types of magnetism existed. These new magnets have potential applications in developing a new type of computer, offering the possibility of faster performance, reduced energy consumption, and

Advanced JIT compilers for Ruby: TruffleRuby and JRuby

Published: 2025-07-16 | Origin: /r/ruby

Abiodun Olowode's article discusses two advanced Just-In-Time (JIT) compilers for Ruby: TruffleRuby and JRuby, including their advantages and disadvantages, along with a mention of the newly announced ZJIT compiler. The post explains JIT compilation as a hybrid of code interpretation and traditional compilation, highlighting how it optimizes performance by converting frequently executed code ("hotspots") into machine code during runtime. While JIT compilation allows for an initial slower performance that improves over time

Are self maintained language frameworks worth it?

Published: 2025-07-16 | Origin: /r/programming

EulerHS is a free, monadic framework for building concurrent web backends and console applications in Haskell, designed to simplify development by integrating essential subsystems like SQL databases, logging, and key-value databases. It emphasizes exception safety, reducing the complexity often associated with Haskell programming. The framework includes testing facilities for integration and automatic whitebox testing, making code writing more straightforward and testable. Despite its benefits, users should be aware that Juspay, which successfully uses EulerHS in production,

Am I Becoming Irrelevant?

Published: 2025-07-16 | Origin: /r/programming

The blog post reflects the author's personal experience and emotions surrounding the transition to a leadership role. Initially, they felt fulfilled and impactful in their work, successfully delivering features and solving problems. However, upon becoming a manager, they grapple with feelings of frustration and confusion about their new responsibilities. The author expresses a sense of loss regarding their previous hands-on contributions, noting that their role now often feels like being a buffer or gatekeeper rather than making a tangible impact. They miss the clarity of achievement and recognition that