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Category: Development

Rust and C Interoperability in the Linux Kernel: Memory, Self-Referential Structures, and Locks

2025-07-19

This article delves into the intricacies of interfacing Rust and C code within the Linux kernel. It highlights memory allocation (Kmalloc, Vmalloc, KVmalloc, and their corresponding Box and Vec usage), handling self-referential structures (Pin and the pin_init! macro), and locking mechanisms (Mutex, LockedBy, GlobalLockedBy). Rust enhances kernel code safety and reduces runtime errors through its type system and lifetime management.

(lwn.net)
Development C Interop

lsr: Blazing Fast File Listing with io_uring

2025-07-18

lsr is a lightning-fast file listing utility leveraging io_uring, significantly outperforming the traditional `ls` command. Benchmarks demonstrate dramatic speed improvements and reduced syscall counts when handling numerous files. It offers a rich set of options including showing hidden files, sorting by time, and colored output, along with straightforward installation and usage instructions. The project is hosted on GitHub and supports cloning via HTTP or SSH.

(tangled.sh)
Development

Servo Engine Makes Strides: Windows Multi-process Support Lands!

2025-07-18

The open-source web layout engine Servo continues to advance. This month's update highlights significant progress in incremental layout, performance optimizations, WebDriver server support for automation, viewport meta tag support, DOM scroll event support, basic IndexedDB support, improved AbortController abort handling, experimental multi-process support on Windows, and enhanced DevTools and screen reader capabilities. Servo is steadily maturing into a robust embeddable browser engine.

(www.phoronix.com)
Development Web Layout Engine

Anthropic's Claude Code Hit by Unexpected Usage Limits

2025-07-18
Anthropic's Claude Code Hit by Unexpected Usage Limits

Users of Anthropic's Claude Code have been encountering unexpectedly strict usage limits since Monday, particularly impacting heavy users on the $200/month Max plan. Users receive only a vague "usage limit reached" message without explanation or prior notice, leading to suspicions of downgraded subscriptions or inaccurate usage tracking. Anthropic acknowledged the issue but offered no details. The incident highlights flaws in Anthropic's tiered pricing, which lacks clear usage guarantees, making planning difficult for users. The high value proposition of the Max plan, allowing some users to generate over $1000 in API calls daily, is also a central point of concern, raising questions about its long-term sustainability. The lack of transparency is eroding user confidence.

(techcrunch.com)
Development

OpenBSD's chflags: Achieving ISO 27001 Compliant Immutable Logs

2025-07-18
OpenBSD's chflags: Achieving ISO 27001 Compliant Immutable Logs

This article details how to leverage OpenBSD's `chflags` command with `sappnd` and `schg` flags to achieve immutable logging, fulfilling ISO 27001's log integrity requirements. While ISO 27001 doesn't explicitly demand immutability, its log protection stipulations effectively necessitate it. The author disables the `newsyslog` cron job, creates a log archive directory, and uses `chflags` to set append-only and immutable flags on log files, ensuring log integrity even if root access is compromised. A `/etc/rc.securelevel` script automates log rotation and flag management during boot, providing a robust and automated logging solution.

(rsadowski.de)
Development Log Security

tsx: Streamlining TypeScript Development in Node.js

2025-07-18
tsx: Streamlining TypeScript Development in Node.js

tsx is a Node.js enhancement that lets you run TypeScript code directly without complex configurations. It solves the compatibility issues between CommonJS and ESM modules in the Node.js ecosystem, allowing seamless switching and featuring a watch mode for increased developer productivity. Born from the challenges of Node.js's module system evolution, tsx aims to simplify the TypeScript experience. Currently relying on user donations, it seeks sponsorship to ensure continued maintenance and development.

(tsx.is)
Development

Rust Extensible Data Types with CGP: Modular Interpreters and Extensible Visitors

2025-07-18
Rust Extensible Data Types with CGP: Modular Interpreters and Extensible Visitors

This blog post is part two of a series on programming extensible data types in Rust using CGP. It explores building modular interpreters using extensible variants and the extensible visitor pattern to solve the expression problem. A toy math expression language demonstrates how to decouple variant implementations from enum definitions, creating open-ended, modular visitors that avoid runtime errors or rigid interfaces. CGP enables building extensible, modular interpreter components that compose to create complex interpreter functionality.

(contextgeneric.dev)
Development Extensible Data Types

RisingWave: Simplifying Stream Data Processing

2025-07-18
RisingWave: Simplifying Stream Data Processing

RisingWave is a stream processing and management platform offering a simple and cost-effective way to process, analyze, and manage real-time event data. It boasts built-in support for the Apache Iceberg™ open table format and provides both a Postgres-compatible SQL interface and a DataFrame-style Python interface. Ingesting millions of events per second, RisingWave continuously joins and analyzes live streams with historical data, serves ad-hoc queries at low latency, and persists fresh, consistent results to Apache Iceberg™ or any downstream system. Its integrated storage engine ensures high performance, fast recovery, and dynamic scaling. Easy to use and cost-efficient, RisingWave excels in streaming analytics, event-driven applications, real-time data enrichment, and feature engineering.

(github.com)
Development

Bypassing Middleboxes Blocking MPTCP with eBPF

2025-07-18

The MPTCP protocol can be blocked by middleboxes (like NATs, firewalls) in certain network environments. This article introduces an eBPF-based TCP-in-UDP solution that cleverly bypasses these limitations by encapsulating TCP packets within UDP packets. This solution requires no extra data layers or VPNs, simply reordering the TCP header and using eBPF to efficiently handle checksums, ultimately solving challenges posed by network stack optimizations and hardware offloading. While some minor issues remain, such as the loss of the URG flag and MTU/MSS adjustments, this approach offers an effective way to improve MPTCP performance in complex network environments.

(blog.mptcp.dev)
Development Network Optimization

Beyond the XOR Trick: Finding Thousands of Missing IDs with Invertible Bloom Filters

2025-07-18
Beyond the XOR Trick: Finding Thousands of Missing IDs with Invertible Bloom Filters

This article introduces Invertible Bloom Filters (IBFs), a data structure that efficiently solves the problem of finding thousands of missing IDs in a massive dataset. Starting with the simple XOR trick, the article progressively explains the workings of IBFs, overcoming the limitations of the traditional XOR trick through partitioning and iterative recovery. IBFs use hashing to partition sets, then iteratively recover the symmetric difference using a 'peeling' algorithm to efficiently find missing elements. A Python implementation is provided for learning and experimentation.

(nochlin.com)
Development Invertible Bloom Filters

Unlocking Extreme Productivity with Claude Code and Background Agents

2025-07-18

This post details the author's experience using Claude Code and their tool, Terragon, for AI-assisted programming. Terragon manages multiple background Claude Code agents, running them in the cloud and automatically creating pull requests, dramatically boosting productivity. The author's workflow involves assigning tasks to Terragon's agents and then locally reviewing and testing. This hybrid approach allows for parallel task management, significantly increasing output, especially for repetitive tasks, code cleanup, and debugging. The post also shares lessons learned, including understanding the model's strengths and weaknesses, knowing when to abandon unsuccessful attempts, and effective time management.

(ymichael.com)
Development

Smooth Transition: Getting Started with Linux from Windows

2025-07-18
Smooth Transition: Getting Started with Linux from Windows

For users switching from Windows to Linux, Linux Mint and Zorin OS are excellent choices. Volunteers should assist users in familiarizing themselves with the Linux environment and finding Linux equivalents to their Windows software. Demonstrations, such as using a live USB or dedicated Linux demo machines, can help users experience Linux firsthand. Dual-booting is an option if users want to keep both Windows 10 and Linux, but volunteers should advise that Windows 10 will become outdated and insecure, and should be used only for specific applications, while Linux should be used for daily tasks.

(therestartproject.org)
Development

Linux Secure Boot Faces Key Expiration Crisis

2025-07-18

A Microsoft key used for signing the Linux Secure Boot shim bootloader is set to expire in September, potentially breaking booting on numerous systems. While a replacement key has been available since 2023, many systems lack the update, possibly requiring firmware updates from hardware vendors. This adds extra work for Linux distributions and users. Solutions involve firmware updates via LVFS and fwupd, but older firmwares might have compatibility issues, potentially requiring Secure Boot to be disabled. Vendor updates may also present problems, such as lost platform keys. Ultimately, this highlights the challenges Linux faces relying on a Windows-centric hardware ecosystem.

(lwn.net)
Development Firmware Updates

JetBrains' AI-Powered Code Completion: Small Model, Big Impact

2025-07-18
JetBrains' AI-Powered Code Completion: Small Model, Big Impact

JetBrains' Full Line Code Completion in PyCharm is a game-changer. Instead of relying on massive LLMs, it uses a smaller, locally-run model optimized for Python. This model excels at auto-generating log statements, significantly boosting developer productivity. It predicts variable names, data structure access, and generates clearer logs than most developers would write – logs valuable even in production. Trained on a curated dataset and employing optimization techniques like quantization and caching, it's fast and efficient. This demonstrates the potential of smaller, specialized models for specific tasks, offering a new paradigm for AI-assisted programming.

(newsletter.vickiboykis.com)
Development

NIH Is Cheaper Than the Wrong Dependency

2025-07-18
NIH Is Cheaper Than the Wrong Dependency

This article challenges the common assumption that software dependencies are always beneficial. The author argues that dependencies incur significant costs, including learning curves, maintenance overhead, security risks, and deployment complexity. Using the TigerBeetle database as an example, the article highlights the advantages of a 'zero-dependency' policy. A framework for evaluating dependencies is proposed, encompassing ubiquity, stability, depth, ergonomics, and watertightness. POSIX system calls, ECMA-48 terminal control codes, and the web platform are used to illustrate the framework's application. The article concludes by urging developers to critically assess the costs and benefits of dependencies before making choices.

(lewiscampbell.tech)
Development

Two Weeks with Claude Code: A Deep Dive into an AI Coding Assistant

2025-07-17
Two Weeks with Claude Code: A Deep Dive into an AI Coding Assistant

This detailed account chronicles two weeks of using Claude Code. Initially relying on Cursor and its generous API access for code generation and comprehension, API rate limits pushed the author towards a paid Claude Code subscription. A comparison of Claude Code and Cursor highlights strengths and weaknesses, including Sonnet 4 and Opus 4 model performance differences, Claude Code's context management, search capabilities, and custom commands. The author shares practical tips – efficiently utilizing sub-agents, context management, and command shortcuts – and suggests improvements for Claude Code. Overall, the author finds Claude Code powerful but with a steep learning curve, rewarding curiosity and exploration.

(sankalp.bearblog.dev)
Development

BB(6) Cryptid: The Antihydra and a Collatz-like Problem

2025-07-17

Researchers working on the Busy Beaver problem (BB) have discovered a BB(6) candidate called the "Antihydra." This problem involves a Collatz-like function where the iteration process determines the program's trajectory. The Antihydra's trajectory resembles a random walk, and its halting condition depends on the ratio of odd to even operations. This discovery presents new challenges and directions for Busy Beaver research, potentially shifting the focus from finding the largest Busy Beaver numbers to understanding and explaining these 'cryptids' and their behavior.

(www.sligocki.com)
Development

n8n vs Node-RED: A Tale of Two Workflow Automation Tools

2025-07-17
n8n vs Node-RED: A Tale of Two Workflow Automation Tools

Both n8n and Node-RED excel at transforming data into actionable information, but cater to different needs. n8n shines when working with public cloud data, but requires supplementary tools like ObservableHQ for visualization. Node-RED, on the other hand, is ideal for private data sources, particularly file-based or sensor data, but needs integration with platforms like Flowise AI for AI-intensive tasks. The choice depends on your data location and processing requirements. The author emphasizes the importance of data visualization and AI ethics in building robust systems.

(daniel-payne-keldan-systems.medium.com)
Development

Rejoy Health: Hiring Software Engineers for AI-Powered Medical Search

2025-07-17
Rejoy Health: Hiring Software Engineers for AI-Powered Medical Search

Rejoy Health, an AI-powered medical search platform for clinicians, is hiring Software Engineers. Responsibilities include building and scaling backend systems for their AI search engine, developing APIs and services for their web app, collaborating with ML engineers on NLP/LLM model integration, and designing performant and secure infrastructure. Requirements include 1+ years of software engineering experience (Python, React.js preferred), strong backend development skills, experience with cloud platforms (AWS, GCP, or Azure), and DevOps familiarity.

(www.ycombinator.com)
Development

Urgent Security Update for Matrix: High-Severity Vulnerabilities Patched

2025-07-17
Urgent Security Update for Matrix: High-Severity Vulnerabilities Patched

The Matrix team has identified and patched two high-severity protocol vulnerabilities (CVE-2025-49090 and another yet-to-be-assigned CVE) that could lead to unexpected state resets in Matrix servers. A coordinated security release across all Matrix server implementations is planned for July 22nd, 2025, at 17:00 UTC (version 1.16, room version 12). This update requires upgrading existing rooms. Users running Matrix servers are urged to upgrade as soon as possible. Client developers should review MSC4291 and update their clients to support the new room ID format and creator privileges.

(matrix.org)
Development

Sixth AI: Supercharge Your Coding Workflow with AI

2025-07-17
Sixth AI: Supercharge Your Coding Workflow with AI

Sixth AI is an AI-powered coding assistant for Visual Studio Code designed to boost developer productivity. It offers blazing-fast AI-powered code completion, a chat interface for generating, editing, and modifying multiple files simultaneously, codebase indexing for easy navigation, inline chat for direct code editing suggestions, terminal command generation, and smart code suggestions. Supporting a wide array of programming languages and frameworks, Sixth AI also features an active Discord community for support and feedback. Whether you're a beginner or an expert, Sixth AI promises to make your coding faster and smarter.

(marketplace.visualstudio.com)
Development

Symbian: The Forgotten Million-Device OS Source Code is Now Open Source

2025-07-17
Symbian: The Forgotten Million-Device OS Source Code is Now Open Source

The once-popular Symbian operating system's source code is now open-source on GitHub. Despite Nokia's massive investment and multiple UI iterations, Symbian ultimately failed to compete with Android and iOS. This article explores Symbian's rise and fall, its current neglected state, and the possibility of porting it to ARM devices like the Raspberry Pi. Symbian's open source nature offers developers a chance to learn, explore, and potentially spark new applications and innovation.

(www.theregister.com)
Development

0 to 1: A Software Engineer's Two-Year Journey

2025-07-17

This blog post chronicles a software engineer's two-year work experience across multiple projects. He details the development of Maximus, a bug dashboard application, evolving from a static web app to a full-stack solution significantly improving team efficiency. He also recounts improving the quarterly service report generation process, migrating from outdated Excel VBA to a Python-based pipeline utilizing sqlite for data management. Additional tools were built, including one for comparing network device upgrade reports. Beyond work, he developed two personal projects: TweetLists.app, for sharing tweet lists; and Tiles.run, an AI-powered notebook. The author reflects on lessons learned in software development, teamwork, product strategy, and offers insights into his future plans.

(aswinc.blog)
Development personal projects

2025 Task Runner Census: GitHub Actions Reigns Supreme, Make Endures

2025-07-17
2025 Task Runner Census: GitHub Actions Reigns Supreme, Make Endures

A 2025 census of task runners on GitHub reveals GitHub Actions dominating the CI/CD landscape, while the venerable Make utility remains surprisingly prevalent. Emerging package managers like uv (Python) and pnpm (JavaScript) are also gaining traction in new repositories. Analyzing the top 100,000 starred repos, the study found GitHub Actions in nearly 40% of repositories, with Make holding a strong 19%. In the JavaScript ecosystem, npm leads but pnpm is rising; for Python, uv offers a significantly improved task management experience.

(aleyan.com)
Development Task Runners Package Managers

Rust: Filling the Native Development Gap

2025-07-17

The author, seeking a suitable language for writing a native desktop application, after careful consideration, finally chose to try Rust. He eliminated C++ (too complex), C (too low-level), and Go (convenient, but compromises on memory management). TypeScript, while convenient, lacked the "solid" feel of a native program. Ultimately, Rust, with its higher level of abstraction and fine-grained control over memory management, emerged as the best choice to fill the native development gap, despite the author's prior lack of experience with the language.

(mnvr.in)
Development native development

New API: Full-Stack Backends for Agents

2025-07-17
New API: Full-Stack Backends for Agents

Software engineering enters a new phase with the rise of AI agents. This post announces a new API providing full-stack backend services for agents, including databases, sync engines, authentication, file storage, and presence. Designed to simplify app development, the API leverages built-in abstractions, efficient hosting, and data exposure for improved productivity. Its multi-tenant architecture enables rapid creation of numerous databases, reducing costs, and supports various isolation strategies to optimize resource utilization. The ultimate goal is to empower both developers and AI agents to build and deploy applications more easily, with database-like abstractions enabling app extensibility.

(www.instantdb.com)
Development full-stack backend

Handcrafting Your Git Repository: A Deep Dive into Git Internals

2025-07-17
Handcrafting Your Git Repository: A Deep Dive into Git Internals

This article provides a detailed explanation of how to create a Git repository manually without using any git commands. Starting with the creation of necessary directories and files, the author gradually explains how Git objects (blob, tree, commit) are stored and the principle of Content Addressable Storage (CAS). The article also explores Git's pack files and index files, and how to manually create a commit containing files. Finally, the author summarizes the elegance of Git's design and how understanding the underlying mechanisms can lead to better Git usage.

(drew.silcock.dev)
Development Internals

Elegoo Arduino Uno R3 Starter Kit: A Journey Through Electronics Experiments

2025-07-17
Elegoo Arduino Uno R3 Starter Kit: A Journey Through Electronics Experiments

The author embarked on a journey of electronics experimentation using the Elegoo Arduino Uno R3 Starter Kit, exploring over 200 components. From basic LED control to complex stepper motor control, the author meticulously documented their learning process, covering PWM, 74HC595 expansion, sensor applications (ultrasonic, PIR, MPU-6050), actuator control (motors, servo motors), and various communication interfaces (serial, IR, RFID). The article also delves into core electronics concepts such as RC circuit delay triggering, and includes interesting troubleshooting experiences.

(lopespm.com)
Development Electronics Experiments

Metaflow: Streamlining AI/ML System Development

2025-07-17
Metaflow: Streamlining AI/ML System Development

Metaflow, a human-centric framework, empowers scientists and engineers to build and manage real-world AI/ML systems. Scaling to teams of all sizes, it streamlines the entire development lifecycle, from rapid prototyping in notebooks to reliable production deployments. Originally from Netflix and now backed by Outerbounds, Metaflow boosts productivity across diverse projects, from classical statistics to deep learning. Used by thousands at companies like Amazon and Doordash, it unifies code, data, and compute for seamless management. Its simple Python API supports local prototyping, cloud scaling, dependency management, and one-click production deployment.

(github.com)
Development

Blocking All Crawlers Backfired: A robots.txt Lesson and Open Graph Protocol Deep Dive

2025-07-17
Blocking All Crawlers Backfired: A robots.txt Lesson and Open Graph Protocol Deep Dive

To protect blog data, the author blocked all crawlers via robots.txt, unintentionally breaking LinkedIn post previews and reducing reach. The LinkedIn Post Inspector revealed that robots.txt prevented the LinkedIn bot from accessing page metadata (Open Graph Protocol) needed for previews. Fixing the robots.txt file resolved the issue. This experience led to learning about the Open Graph Protocol and highlighted the importance of thoroughly testing code changes.

(evgeniipendragon.com)
Development
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