Dev · Top stories
Centering a Div with Browser Sidebars and DevTools Open
This article details a method for accurately centering a div element on a webpage, accounting for the presence of browser sidebars and developer tools. It explains how to calculate the necessary offset using JavaScript to ensure the element remains visually centered within the user's view, even when browser chrome affects the available display area.
Live Speech-to-Text with Foundry Local and C# for .NET 10
A new guide demonstrates how to build a C# console application for live speech-to-text transcription using Foundry Local and a specialized NVIDIA Nemotron speech model. This application processes microphone audio in real time, providing partial and final transcription results locally.
Algorithm and Color Space Developed for Diverse Skin Tone Generation
A new algorithm and color space have been developed to generate a diverse range of skin tones for digital applications. This development aims to improve inclusivity in character creators and digital art by providing a broader and more accurate representation of human skin colors.
Microservices Platforms: Combining Team Topologies and Microservices Patterns
Chris Richardson presented on microservices platforms, focusing on how team topologies and platform teams can accelerate the delivery of microservices-based applications. The presentation aims to reduce the cognitive load on service teams, enabling faster and better software delivery by applying established patterns.
Building a cross-compiler for Itanium to run Windows XP/2003 on Qemu
A developer successfully built a cross-compiler for the Itanium architecture on macOS, enabling the emulation of Windows XP and 2003 using a Qemu fork. This effort demonstrates the technical feasibility of running legacy operating systems on emulated, historically niche hardware.
Exploring ZX Spectrum Machine Language and System Organization for Text Mode Display
This article begins a series on ZX Spectrum machine language programming, focusing on how programs exist on the system and how they interact with hardware for text mode display. It highlights the challenges posed by the Spectrum's minimal firmware interface compared to other 8-bit platforms.
Pandoc Celebrates Twenty Years Since Its Initial Release
Pandoc, a universal document converter, marks its twentieth anniversary since its initial release on August 3, 2006. The project, which began with 3000 lines of Haskell code, has grown to support over fifty document formats and is integrated into academic writing tools like Quarto and Jupyter Notebook.
Using Task Runners to Standardize Common Development Commands Across Repositories
Developers can use task runners to standardize common coding tasks like dependency installation, building, linting, and testing across different projects and tech stacks. This approach helps developers avoid memorizing specific commands for each repository, improving workflow efficiency. The article provides examples of implementing this with simple bash scripts.
Understanding Regular Expressions and Formal Language Theory
This article clarifies the definition of "regular" in the context of formal language theory and demonstrates how modern regular expressions can concisely represent regular grammars. It explains that while HTML is not a regular language, regular expressions are powerful tools for specific parsing tasks.
Sharing X11 Server Across Hosts Using FamilyWild for Authorization
A method has been identified to resolve X11 authorization errors when running applications in environments like containers or SSH with bind-mounted .Xauthority files. The solution involves rewriting the Xauthority cookie to use the FamilyWild wildcard, allowing it to match any hostname. This provides a fix for a common issue encountered by developers working with X11 applications across different host environments.
Adding Go's Defer Statement to the TypeScript Compiler
A developer explored the process of integrating Go's `defer` statement into the TypeScript compiler. This involved modifying the compiler's Abstract Syntax Tree (AST) to recognize and transform the new syntax into equivalent JavaScript runtime code, demonstrating how new language features can be prototyped within existing compilers.
NixOS-DGX-Spark Project Enables Nix and NixOS on NVIDIA DGX Spark Systems
A new project, NixOS-DGX-Spark, allows users to run Nix playbooks on NVIDIA DGX OS or install NixOS directly on DGX Spark and Asus Ascent GX10 hardware. This provides a declarative configuration and reproducible environment for AI development on these specialized systems.
Guide to Sideloading Android APKs on Chromebooks Using ADB
This guide details how to sideload Android Package Kits (APKs) onto Chromebooks using Android Debug Bridge (ADB), offering an alternative to the Google Play Store for app installation. This method allows users to install apps not available through official channels, expanding the functionality of their Chromebooks.
Developer recounts months of work undone by hidden database commit within transaction
A developer discovered a hidden database commit statement deep within helper functions, causing non-atomic transactions despite explicit transaction wrappers. This issue led to significant rework on a project that had already received stakeholder approval.
Matrix user experiences issues with space notifications and moderation policy rooms
A Matrix user encountered unexpected notifications in a Matrix space due to client rendering of spaces as regular rooms and faced difficulties investigating a spurious ban within a moderation policy room. These incidents highlight usability and moderation challenges within the Matrix protocol and its client implementations.
The Clockwise/Spiral Rule for Parsing C Declarations
The "Clockwise/Spiral Rule" provides a systematic method for C programmers to interpret complex C declarations. This rule helps in understanding the type and structure of variables, especially those involving pointers, arrays, and functions.
Optimizing Postgres for Scalable Queue Workloads Using SKIP LOCKED
A blog post details how to optimize Postgres-backed queues to achieve 30,000 workflow executions per second across thousands of servers. The key optimization involves using the `SKIP LOCKED` clause to prevent contention between multiple workers attempting to dequeue the same tasks concurrently.
Custom WebGPU Kernels Developed for In-Browser Poker Solver Using AI Code Generation
A developer created custom WebGPU kernels for an in-browser poker solver using an AI code generation tool, Codex, to overcome the lack of a suitable WebGPU tensor library. This approach allowed the poker model to run efficiently in a browser, achieving over a 10x speedup compared to a naive implementation.
Paging Through Parquet Files in DuckDB: file_row_number vs. OFFSET
This article compares two methods for paging through large Parquet files in DuckDB: using `OFFSET` and `LIMIT` versus filtering by `file_row_number`. It finds that `file_row_number` can be significantly faster for files with many row groups because DuckDB can skip decompression of irrelevant data blocks. This matters for services that need to return paginated data efficiently from large files without exceeding API response size limits.
Understanding controller-runtime Cache Mechanics in Kubernetes
This article explains how controller-runtime in Kubernetes uses a local in-memory cache for object reads, rather than directly querying the kube-apiserver. This design choice impacts read consistency, memory usage, and network traffic for Kubernetes controllers written in Go.
SpecForge Introduces Lilo Language for Formal Specification of Hybrid Systems
SpecForge has introduced the Lilo language, an expression-based temporal specification language designed for hybrid systems. This language allows developers to define and analyze system requirements, particularly for time-varying inputs and parameters, using a VSCode extension.
Optimizing SQLite for Production App Servers by Tuning WAL Mode, Concurrency, and VFS Layers
This article details how to configure SQLite for production application servers to achieve low latency by optimizing Write-Ahead Logging (WAL) mode, managing busy handlers, and utilizing custom Virtual File System (VFS) layers. It addresses the misconception that SQLite is only suitable for local development by highlighting its potential with modern hardware and proper tuning.
Understanding Recursion's Stack Overflow Limits and Tail Call Optimization in JavaScript
This article explains how recursion, while elegant, can lead to stack overflow errors in JavaScript due to physical stack limits. It demonstrates how to identify non-tail-recursive functions and refactor them into tail-recursive versions to mitigate these limitations. The information is relevant for developers seeking to write more robust recursive functions.
Method for Profiling eBPF Code Performance on File Open Operations
A method for measuring the performance impact of eBPF code, specifically focusing on file open operations, has been demonstrated. This approach helps identify performance bottlenecks introduced by eBPF hooks by comparing file open times with and without the eBPF code attached.
Optimizing Bytecode-to-Source Line Mapping for Debugging
This article explores methods for mapping bytecode offsets back to original source code line numbers, a crucial feature for debugging in virtual machines. It details how run-length encoding can reduce memory usage for line number storage compared to a direct parallel array.
Clean Architecture for Serverless: Achieving Cloud-Agnostic Business Logic
A presentation explores how to maintain cloud-agnostic business logic in serverless environments using clean architecture principles. It focuses on building blocks like Spring Cloud Function and Gradle modules to prevent vendor lock-in. This approach helps developers manage serverless applications across different cloud providers without rewriting core business logic.
Educator uses Forth to teach programming to middle and high school students
An educator chose Forth, a stack-oriented concatenative language from 1970, to teach programming to middle and high school students, prioritizing fundamental concepts over complex syntax. This approach aimed to provide students with a deeper understanding of computing by focusing on a less common programming paradigm.
ESP32-C3 based plane radar project receives firmware updates for improved flight data and UI
A personal project utilizing an ESP32-C3 and a 1.28-inch round display to create a live aircraft radar has received firmware updates. These updates enhance the displayed flight context, add local weather information, and improve the web interface for configuration.
Demystifying Git rebase -i for Developers
This article explains the functionality of `git rebase -i` by detailing how it opens a text file to allow users to edit, reword, squash, fixup, or drop commits. It clarifies that the interactive rebase process is a plan, not an immediate action, and can be aborted at any time. Understanding `git rebase -i` helps developers maintain a clean commit history.
Guide to Multicast TV Distribution on Home Networks Using FFmpeg
This guide explains how to set up multicast TV distribution on a home network, using FFmpeg to stream video content. It demonstrates both transcoding and non-transcoding methods for distributing live TV, highlighting the potential for niche network upgrades.
Vercel UI/UX Improvements: Project Card Density, Context Menus, and Customizable Widgets
Vercel has implemented several UI/UX changes, including reducing project card vertical space, introducing context menus for project actions, and exploring customizable widgets for dashboard insights. These updates aim to improve information density, accessibility of actions, and personalized data display within the Vercel dashboard.
Five Steps for Building Service Architecture and Operational Resilience
This article outlines five steps for designing service architecture to improve operational resilience and incident recovery. It emphasizes the importance of clear service mapping for both human and AI-driven incident response systems. The guidance helps organizations minimize service disruptions and accelerate root cause analysis.
Task-centered iproute2 user guide released for Linux networking commands
A new task-centered user guide for iproute2, the Linux networking toolkit, has been released to address the lack of practical usage examples in official documentation. This guide focuses on how to perform specific tasks using the `ip` and `bridge` commands, providing a practical resource for Linux users and administrators.
Routing Keys Isolate Kafka Consumer Tests on Shared Brokers
Testing Kafka consumers in shared environments is challenging because traditional request routing methods do not apply to asynchronous message queues. A pattern using routing keys, producer stamping, and consumer filtering can isolate changes for testing without duplicating the entire stack. This approach allows developers to validate consumer changes against realistic systems efficiently.
Walkthrough of Fedora 45's Package Building Process from Git Push to Release Artifacts
A detailed walkthrough explains how Fedora transforms source code and packages into downloadable artifacts like ISOs, cloud images, and container images for Fedora 45. The process begins with a packager's Git push and proceeds through the Koji build system, illustrating the infrastructure behind Fedora releases.
Developer tests Playdate handheld's 3D rendering capabilities with a raycaster
A developer conducted an initial performance test on the Playdate handheld by implementing a raycaster to assess its 3D processing power and screen drawing performance. The test revealed that while the device's raw 3D capabilities are limited compared to early 3D accelerators, its low-resolution, 1-bit display offers significant memory advantages, suggesting the potential for 3DO or Sega Saturn-era perceived 3D graphics.
PySINDy: A Python Package for Sparse Identification of Nonlinear Dynamical Systems
PySINDy is a Python package for system identification, primarily implementing the Sparse Identification of Nonlinear Dynamical systems (SINDy) method. It allows users to infer governing dynamics from measurement data, enabling predictions, control inputs, and theoretical study with interpretable models.
Method for preventing line breaks in short HTML <code> elements using CSS `nowrap`
A developer implemented a method to prevent unwanted line breaks within short inline `<code>` elements on their website. This is achieved by dynamically adding a `nowrap` CSS class to code snippets containing spaces or hyphens, improving readability for technical content.
Guide to building a debugger from scratch using Rust for Windows usermode debugging
A guide has been published detailing the process of writing a debugger from scratch, focusing on live usermode debugging on Windows using Rust. The guide aims to educate developers on debugger functionality and improve Rust proficiency by implementing core debugging concepts.
WebGPU C++ Documentation Guides Native 3D Application Development
New documentation provides a guide for developing native 3D applications using the WebGPU graphics API in C++ for Windows, Linux, and macOS. The guide offers options for different levels of boilerplate code and API wrappers, catering to various developer preferences.