Published: 2025-07-29 | Origin: /r/programming

The article provides a detailed guide on using GDB over a serial connection to debug the kernel on a Pixel 8 device. It covers the steps for building and flashing a custom kernel with KGDB enabled, as well as methods for breaking into KGDB using both ADB and serial connections. The guide is designed to be adaptable for other Pixel models. The author, who teaches a course on exploiting the Linux kernel, notes the importance of kernel debugging, especially on physical devices. While preferences for printk-debug

Published: 2025-07-29 | Origin: /r/programming

The 2025 Developer Survey, conducted by Stack Overflow in its fifteenth year, received over 49,000 responses from 177 countries and explored 314 technologies, including AI tools and community platforms. It provides insights into the global developer community's needs and preferences. Notably, Rust's popularity continues to rise, largely due to its build tool, Cargo, which is highly admired in cloud development. The survey introduced the new role of Architect, which ranked as the fourth most popular among respondents.

Published: 2025-07-29 | Origin: Hacker News

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Published: 2025-07-29 | Origin: Hacker News

The post is an informal account of the writer's journey to recreate fireflies using an Astable Multivibrator circuit. Despite having no prior knowledge of electronics, the author embraces the learning process, focusing on small victories and honest mistakes. They experimented with basic components, learning through resources like YouTube and AI tools. After successfully assembling a blinking LED circuit on their first attempt, they faced challenges with the blinking rate and duration. To address these, they sought advice on how to make the LED blink only

Published: 2025-07-29 | Origin: /r/programming

In this episode of The Cursed Systems Programming Show™, the focus is on creating a "Hello, World!" program using unconventional and complex methods by implementing a Type-II hypervisor in Rust. Instead of typical syscalls, the show explores x86's virtualization extensions, specifically utilizing KVM (Kernel-based Virtual Machine) on Linux, which allows user-space programs to access privileged CPU instructions without needing to write kernel modules. The process involves opening /dev/kvm and utilizing ioctl commands to obtain a VCPU

Published: 2025-07-29 | Origin: Hacker News

Hyprnote is a desktop application developed to address privacy concerns associated with meeting note-taking tools that send data to external servers. It allows users to transcribe and summarize meetings locally by capturing microphone input and system audio, eliminating the need for third-party bots. The app utilizes local AI models, specifically Whisper and a custom model called HyprLLM, which is based on Qwen3. While the team acknowledges that they are still improving the summarization capabilities, they emphasize the importance of data control and

Published: 2025-07-29 | Origin: /r/ruby

The author expresses a fondness for the "slices" feature in Hanami, which allows for the integration of cross-functional mini-apps within a primary project. Initially part of the early Hanami (formerly known as Lotus), this feature can be used to build complex applications like an admin panel. However, the existing structure can feel overwhelming for smaller projects. The author discovers a simpler method to create micro-slices directly in Hanami. This involves creating a minimal slice without the extensive setup usually

Published: 2025-07-29 | Origin: /r/programming

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Published: 2025-07-29 | Origin: Hacker News

The content likely discusses the reasons behind the rarity of smartphone photos being printed and displayed in frames. It suggests that factors such as digital convenience, changes in how we value photography, and the prevalence of digital sharing may contribute to this phenomenon.

Published: 2025-07-29 | Origin: Hacker News

Ethersync is a real-time collaborative editing tool for local text files, suitable for pair programming and note-taking, and considered a complement to Git. It is currently in active development with some bugs present, and works across various platforms including Linux, macOS, Android, and Windows Subsystem for Linux. Users can connect their directories to sync changes instantly when using compatible text editors. The tool provides precompiled binaries on GitHub and offers a Nix flake for easier integration into shell paths. Contributions

Published: 2025-07-29 | Origin: /r/programming

The blog post discusses Ralf Jung's argument that Go is not a memory-safe language when data races occur, despite having a built-in data race detector. The author highlights a specific issue where Go's race detector fails to identify certain data races in executed code. In a scenario where one thread increments a shared counter with a lock and another thread increments it without a lock, the race detector only recognizes the race under certain timing conditions. This limitation arises from the way the detector models locks and analyzes "h

Published: 2025-07-29 | Origin: Hacker News

To save the sound file, right- or control-click the provided link, select "Save As...", and name the file with a ".wav" extension. The sound file named "sfx.wav" is authored by Eric Fredricksen and is a port of sfxr by DrPetter.

Published: 2025-07-29 | Origin: /r/programming

The author discusses the significance of parsing in programming language design, likening it to Brussels sprouts—beneficial yet unappealing to many. They express concern that a general aversion to parsing has led to poor decisions in its implementation. The author reflects on their own previous misconceptions about the ease of parsing and emphasizes the importance of understanding it more thoroughly. At its core, parsing involves taking an input, such as a source file, and verifying its compliance with grammar rules. This process typically generates a

Published: 2025-07-29 | Origin: /r/programming

The author reflects on their experience as a senior engineer on X (@ordepdev), discussing the concept of a "circle of competence." They emphasize that this circle encompasses not just what they know theoretically but also their fluency and instinct in specific areas. When feeling uncertain or overwhelmed, it often indicates going beyond this circle. The author highlights the importance of understanding and clearly identifying what they know well, what they don’t know, and what is unknowable, which helps in making sharper decisions and building trust

Published: 2025-07-29 | Origin: Hacker News

The content reviews five Akkerman fountain pen inks: 16 Oranje Boven, 17 Staten-Generaal Rood, 18 Garuda Rood, 19 Rood Haags Pluche, and 20 Pulchri Pink. Available for purchase at retailers like Vanness Pens, the inks were tested on Rhodia, Tomoe River, and Leuchtturm papers. Key performance features include a dry time of 40-80 seconds, medium water resistance, no feathering

Published: 2025-07-29 | Origin: Hacker News

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Published: 2025-07-29 | Origin: Hacker News

The content discusses the disparity in responsiveness between fast-moving technological entities like TikTok and slower-moving institutions such as educational systems and democratic governments. It highlights a framework proposed by entrepreneur Naval Ravikant that identifies three types of leverage—labor, capital, and code—each operating at different speeds (linear, exponential, and systematic). The text describes a phenomenon called "leverage arbitrage," where those with higher-order leverage (e.g., tech companies) can extract value from systems more rapidly than those with

Published: 2025-07-29 | Origin: /r/programming

The post reflects a personal journey of learning electronics to create artificial fireflies, inspired by the absence of real ones. The author shares their initial ignorance about electronics, including confusion over basic concepts like voltage and current, and their eventual understanding through research and AI assistance. After assembling a basic blinking LED circuit, which surprisingly worked on the first try, the author encountered issues with the blink frequency and duration, realizing they needed it to blink only at night and at a slower pace. They discovered the use of a

Published: 2025-07-29 | Origin: Hacker News

The text critiques the reliance on over-hyped technological solutions, such as cryptocurrencies and certain fintech models, to address deep-rooted societal issues, particularly regarding financial wellbeing. It emphasizes that while some technology appears promising, it often fails to solve the underlying problems or lacks a clear purpose. There is a concern that many in the tech industry are chasing the next big innovation without true applications in mind. Moreover, the private sector is unlikely to resolve structural economic issues like precarity and may instead exploit these conditions for

Published: 2025-07-28 | Origin: /r/programming

The author discusses their experience with mental models, particularly the concept of "Inversion," which they used during a leadership team discussion to identify ways to avoid demotivating engineers. This approach underscores the importance of understanding what NOT to do in order to promote a positive work environment. Mental models are described as valuable tools that help improve decision-making and problem-solving across various aspects of a career, especially after transitioning from technical to leadership roles. The article serves as an introduction to mental models for those interested in exploring