Published: 2025-07-25 | Origin: Hacker News

The Rotring 600 ballpoint pen is a high-quality, all-metal writing instrument based on the classic Rotring 600 design. It utilizes a standard Parker-style refill with a clicker mechanism that operates crisply but can be noisy, potentially bothering those nearby. The pen closely resembles the Rotring 600 mechanical pencil, with minor differences in nib units and barrel lettering. While the pen is generally reliable and well-regarded, the reviewer experienced an issue with the original Rotring refill, which broke

Published: 2025-07-25 | Origin: Hacker News

Tailwind Plus has introduced a significant update that makes all its UI blocks fully functional and interactive without the need for JavaScript frameworks like React or Vue. This enhancement is possible due to the release of @tailwindplus/elements, a library designed for Tailwind Plus customers. The library contains headless custom elements that provide the necessary functionality for creating interactive UIs using only HTML, which can be styled with utility classes or custom CSS. These custom elements, such as <el-select> and <el

Published: 2025-07-25 | Origin: Hacker News

The author reflects on the decision to develop their own date parsing library after initially adopting Luxon for Eleventy in 2018. While Luxon met Eleventy's needs well, its lack of support for tree-shaking became a problem as Eleventy expands to different JavaScript environments. After evaluating alternatives, the author found dayjs to be inaccurate and noted the challenges posed by the ambiguity inherent in various date formats. This prompted a reevaluation of the necessity of dual publishing packages and a focus on the

Published: 2025-07-25 | Origin: Hacker News

In a discussion about MIT's switch from Scheme to Python for their introductory programming course (6.001), Sussman explained that programming has evolved significantly since 1980. In earlier times, good programming involved deep understanding and precision, akin to working with resistors. However, by the mid-90s and beyond, programming became more about dealing with complex, opaque software systems and libraries whose workings were not always clear. This shift necessitated a new approach to teaching programming, leading to the robot

Published: 2025-07-25 | Origin: Hacker News

Efficient Computer, a startup entering the embedded market, claims that the conventional approach to building general-purpose CPUs has been flawed for decades. Their product, the Electron E1 chip, deviates from traditional control flow models that heavily rely on data shuffling, which is energy-intensive. Instead, Efficient focuses on static scheduling and a novel data flow architecture, aiming for a design without caches or out-of-order execution, while still maintaining general-purpose functionality. The Electron E1 features a custom Instruction Set Architecture and

Published: 2025-07-25 | Origin: /r/programming

In backend applications with evolving database schemas, it's common for developers to forget to update fields from nullable to non-nullable after ensuring they are fully populated with data. This oversight creates a mismatch between the schema and the actual data, leading to confusion and increasing code complexity. When fields remain marked as nullable despite containing no nulls, it misrepresents the data model, weakening trust in the schema. The reluctance to change fields to non-nullable stems from potential risks in production environments, causing teams to

Published: 2025-07-25 | Origin: /r/programming

The author is currently working on integrating an HTTP 1.1 stack into Inko's standard library, which will include a server, client, basic cookie handling, form parsing/generation, and a request router. The development is based on existing RFCs, which the author notes are more descriptive of real-world implementations than prescriptive specifications. They highlight the complexity and oddities of the HTTP 1.1 protocol, such as the use of hexadecimal rather than decimal for chunked transfer sizes and peculiar

Published: 2025-07-25 | Origin: /r/programming

The content outlines a lightweight health audit for database performance that can be completed quickly. It presents a checklist with five key questions, along with a bonus operating system insight, and requires only the essential pg_stat_statements extension. The goal is to achieve a performance level of at least 99% for OLTP or 95% for analytics. If performance is low, it suggests increasing shared_buffers to 25-40% of RAM and verifying operating system memory with certain commands.

Published: 2025-07-25 | Origin: /r/programming

The document outlines a multi-chapter guide focused on hacking dormant Bitcoin wallets using C programming and elliptic curves. **Chapter Summaries:** - **Chapter 1:** Introduces elliptic curves in a user-friendly manner. - **Chapter 2:** Provides insights into accessing Bitcoin wallets, emphasizing the importance of private keys and how they are transformed into Bitcoin addresses through various steps involving hashing algorithms. - **Chapter 3:** Discusses finding the Edwards form of the Bitcoin curve. - **Chapter

Published: 2025-07-25 | Origin: /r/programming

In this article by Manon Oomen, dated July 25, 2025, the emphasis is on understanding GPU performance through the development of a benchmark called Evolve at Traverse Research. The article discusses the complexity of GPU memory access compared to CPUs, highlighting the use of descriptors for loading and storing data. Descriptors act as pointers with additional metadata essential for the hardware to manage textures and buffers, which cannot be directly seen due to vendor-specific binary representations. The discussion includes an overview of different types

Published: 2025-07-25 | Origin: Hacker News

The content addresses the common misnaming of the 9-pin serial connector, often referred to as DB9, which is technically incorrect; the correct term is DE9. This misnomer is clarified as part of a new product launch for SparkFun's DE9 Connector Breakouts. The D-sub connector family is characterized by its D-shaped metal shield, and the naming convention indicates that the first letter "D" denotes the shape, the second letter specifies the shell size, and the number indicates

Published: 2025-07-25 | Origin: /r/programming

The blog post discusses security vulnerabilities associated with automation platforms like Zapier, particularly when using AI agents for tasks such as auto-replying to emails. It highlights how the autonomy and lack of oversight in these agents can lead to significant risks. The article outlines a simulated attack to demonstrate these vulnerabilities, where a malicious actor exploits a Gmail auto-reply agent set up through Zapier to exfiltrate sensitive email information. By sending an email with hidden instructions designed to exploit prompt processing vulnerabilities, the actor aims

Published: 2025-07-25 | Origin: /r/programming

The content describes an incident where the author experienced performance issues with their production server shortly after a software update launch. Despite the initial belief that increased traffic was normal due to the launch event, the server continued to struggle with slow response times. The author investigated potential causes by checking the server's resource usage and processes, discovering an unusual high CPU load and excessive requests targeted at sensitive files, suggesting a bot attack. The situation prompted the author to consider immediate protective measures, such as using tools like fail2ban

Published: 2025-07-25 | Origin: Hacker News

The message expresses a commitment to valuing user feedback and suggests referring to documentation for available qualifiers. It also mentions an error occurred, prompting a page reload. Additionally, it describes an API created using Express and NodeJS designed for rickrolling users, humorously referring to it as "Rickroll as a Service" (RaaS).

Published: 2025-07-25 | Origin: /r/programming

Please provide the content that you would like summarized.

Published: 2025-07-25 | Origin: Hacker News

The article discusses a situation where a person received a seemingly legitimate email claiming a subpoena had been issued for their Google account contents. The email appeared to come from a genuine Google address and lacked obvious signs of phishing, raising concerns. To verify its authenticity, the author analyzed the email headers and authentication results (SPF, DKIM, and DMARC) in a safe, isolated environment. The investigation revealed potential red flags, highlighting the increasing sophistication of phishing attempts. The author emphasizes the importance of not interacting

Published: 2025-07-25 | Origin: /r/ruby

The author critiques the common misuse of service objects in coding, particularly how developers often complicate simple methods by hiding them behind classes and convoluted initializers, resulting in unnecessarily lengthy code. Despite this criticism, the author acknowledges that service objects can be beneficial when implemented correctly. They provide an example from their own work on a Phlex on Rails video course involving HLS video streaming with Tigris, an S3-compatible object storage service. The author demonstrates a clear and straightforward setup for a service object

Published: 2025-07-25 | Origin: Hacker News

Asciinema allows you to record terminal sessions by running the command `asciinema rec demo.cast` and ending the session with `ctrl+d` or typing `exit`. When viewing a recording, you can pause the playback and copy-paste any text easily. You can also embed the Asciinema player into blog posts, project documentation, or conference slides. For more details on embedding, refer to the documentation.

Published: 2025-07-24 | Origin: /r/ruby

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Published: 2025-07-24 | Origin: Hacker News

Of course! Please provide the content you'd like me to summarize.