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Recursive Descent Parsers: Simple Wins Over Complexity?

2025-07-28

The author explores approaches to parsing computer languages, specifically comparing recursive descent parsers to LR parser generators. While LR parser generators handle more complex grammars, the author favors recursive descent parsers due to their ease of use, lack of reliance on external tools, and ability to be written directly in the target language, thus minimizing learning curve and debugging challenges. For developers who occasionally need to build parsers for small languages, the simplicity and ease of use of recursive descent parsers outweigh their limitations in handling complex grammars.

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(utcc.utoronto.ca)
Development parsers recursive descent

Solid Protocol: Reclaiming Control of Your Digital Identity

2025-07-28

Our digital identities are fragmented and vulnerable. Solid, a protocol invented by Sir Tim Berners-Lee, offers a radical solution. It uses user-controlled "data wallets" to decouple data from applications, giving individuals ownership and control over their personal information. This addresses critical data integrity issues, preventing errors from leading to discrimination, while enhancing privacy and security. Solid revolutionizes sectors like healthcare, finance, and education, empowering individuals to become the masters of their own data.

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(www.schneier.com)
Tech Solid Protocol

Formal Specifications: Beyond Instructions, Defining Software Behaviors

2025-07-28
Formal Specifications: Beyond Instructions, Defining Software Behaviors

This post delves into the distinction between formal specifications and traditional programs. While programs are lists of instructions, formal specifications are sets of behaviors. Using a counter example, the author illustrates how specifications define all correct behaviors and leverage set theory, employing generators (Init and Next) to describe infinite sets of behaviors. This contrasts with the concept of nondeterminism in programming; in formal specifications, nondeterminism refers to multiple ways a behavior can be extended, while in programs, it refers to uncertain code paths. The article emphasizes understanding formal specifications as sets of behaviors, crucial for debugging and interpreting model checker errors.

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(surfingcomplexity.blog)
Development formal specification behavioral modeling

Blazing Fast Cuckoo Filter Lookups in C# with Bit Twiddling

2025-07-28
Blazing Fast Cuckoo Filter Lookups in C# with Bit Twiddling

While implementing a Cuckoo Filter in C#, the author significantly optimized lookup speed by cleverly replacing a 4-byte bucket with a 32-bit integer and employing bit manipulation tricks. Initially, a byte array required looping through four bytes per bucket. Switching to a uint array and using bit shifting improved performance by roughly 35%. However, the author's final optimization, a branchless bit manipulation technique to directly check for a target byte, resulted in over 60% faster positive lookups and more than double the speed for negative lookups. While readability decreased slightly, the performance gains are substantial, making this a worthwhile optimization strategy.

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(maltsev.space)
Development

Claude Code Router: Unleash the Power of Multi-Model AI Access

2025-07-28
Claude Code Router: Unleash the Power of Multi-Model AI Access

A powerful tool to route Claude Code requests to different models and customize any request. It supports multiple model providers like OpenRouter, DeepSeek, Ollama, Gemini, and more, allowing customization of requests and responses via transformers. Users configure models flexibly through a config file, enabling dynamic model switching, GitHub Actions integration, and a plugin system. This significantly enhances Claude Code's flexibility and efficiency, especially for scenarios needing model switching or request/response customization.

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(github.com)
Development

How to Make PostgreSQL Ridiculously Slow?

2025-07-28
How to Make PostgreSQL Ridiculously Slow?

This article challenges the reader to make PostgreSQL as slow as possible by tweaking parameters in the `postgresql.conf` file, without resorting to CPU throttling or index deletion. Through a series of carefully chosen adjustments, including drastically reducing the buffer cache size (`shared_buffers`), aggressively triggering autovacuum and analyze (`autovacuum_*` parameters), and configuring WAL (`wal_*` parameters) for maximal write frequency and I/O contention, the author manages to reduce PostgreSQL's TPS by over 7000 times, from 7000+ to below single digits, even under 0.1 TPS. The author details the rationale and impact of each parameter change and provides a reproducible configuration. This is a fascinating experiment showcasing the profound impact of database parameter tuning.

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(byteofdev.com)
Development Parameter Tuning

Rescuing My Blog's Performance with jekyll-skyhook

2025-07-28
Rescuing My Blog's Performance with jekyll-skyhook

My blog's Google indexing failed, and PageSpeed Insights gave a dismal 43/100. The culprits? Google Fonts, YouTube embeds, and poorly optimized images. I built a Jekyll plugin, jekyll-skyhook, to fix this. It self-hosts fonts, uses a lightweight YouTube library, and implements image transformations, responsive images, and caching. The result? A soaring PageSpeed score of 99/100! jekyll-skyhook supports image format conversion (WebP, AVIF), automatic srcset generation for responsive images, and caching to avoid redundant processing, significantly boosting blog performance.

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(arclight.run)
Development

Coding at 800 WPM: A Blind Developer's Journey

2025-07-28

This article details the experiences of a blind software developer who uses a screen reader to code at an astonishing 800 words per minute. The author navigates the challenges of screen reader usage, explaining his choices of Windows and VS Code, and offering insights into handling images, diagrams, and team collaboration. He shares techniques like using IaC, LLMs, and custom userscripts, highlighting the crucial importance of accessible developer tools. The article underscores the developer's remarkable adaptation and the need for better accessibility in the software industry.

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(neurrone.com)
Development accessible development screen reader

Multiplex: Command-Line Parallel Process Manager

2025-07-28
Multiplex: Command-Line Parallel Process Manager

Multiplex is a command-line tool with a simple Python API to run multiple processes in parallel and stop them all at once, or based on a condition. It gracefully shuts down child processes, multiplexing their output and error streams to stdout and stderr for easy parsing with standard command-line tools. Multiplex is useful for running multiple programs concurrently and combining their output, such as a web server, work queue, and database. It supports named processes, delayed starts, process- or time-based dependencies, and actions like silent mode and terminating other processes on completion. With its concise syntax, Multiplex simplifies complex orchestration, including CI/CD pipelines and development environment setup.

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(github.com)
Development process management

Hacking My Washing Machine: A Discord Notification Odyssey

2025-07-28
Hacking My Washing Machine: A Discord Notification Odyssey

A group of university students, for fun and practicality, hacked a cheap smart washing machine. Using network sniffing, they discovered the machine communicated with its app via simple HTTP, using a basic XOR encryption. Through reverse engineering and brute-forcing the encryption key, they accessed the machine's status and created a script to update it to their Discord server. The process was challenging and fun, showcasing their skills. They plan to apply this to other appliances for a fully automated smart home.

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(nexy.blog)
Development

Blender on Tablets: 3D Modeling Goes Mobile

2025-07-28
Blender on Tablets: 3D Modeling Goes Mobile

Blender is expanding to tablets! The team is bringing the power of Blender to iPad Pro (initially), adapting the UI for touch and stylus input. The focus will be on core features like object manipulation and sculpting, later expanding to more advanced tools. While targeting tablets, improvements will also benefit desktop users. The project is open for contributions, and demos are planned for SIGGRAPH 2025 and the Blender Conference 2025.

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(code.blender.org)
Development tablets

DumbPipe: A Configuration-Free Inter-Computer Pipe

2025-07-28

DumbPipe establishes a secure data pipe between two computers with a single command, requiring no accounts or configuration. The receiver runs `./dumbpipe listen` to obtain a key. The sender uses this key with `./dumbpipe connect` to transmit data, e.g., `echo "hello" | ./dumbpipe connect `. DumbPipe finds a way to connect regardless of machine location, enabling easy data transfer.

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(www.dumbpipe.dev)
Development network transfer data pipe

The Lawyer Who Unmasked the Ethanol Myth: A Story of Food, Farming, and Climate Change

2025-07-28
The Lawyer Who Unmasked the Ethanol Myth: A Story of Food, Farming, and Climate Change

In 2003, lawyer Tim Searchinger found flaws in a report claiming corn ethanol reduced greenhouse gas emissions. His deeper investigation revealed the report underestimated the climate costs of using grain for fuel, neglecting the land-use changes needed to replace lost food production. Although climate change wasn't a major issue then, Searchinger's skepticism led him to delve into the complex interplay of agriculture, land use, and climate change, ultimately exposing the significant environmental impact of biofuels and paving the way for solutions to global food and climate problems.

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(lithub.com)
Tech land use

ByteDance's Trae IDE: A Performance Hog with a Privacy Problem

2025-07-27
ByteDance's Trae IDE: A Performance Hog with a Privacy Problem

A recent performance and privacy analysis of ByteDance's Trae IDE, a Visual Studio Code fork, revealed alarming results. Trae consumes excessive resources, running 3.7 times more processes and using 6.3 times more memory than VSCode. Despite disabling telemetry settings, it persistently transmits detailed usage data to ByteDance servers, including system information, usage patterns, and unique identifiers. Furthermore, Trae's community management suppresses critical feedback regarding privacy and security concerns. Users should exercise caution when using Trae IDE due to its significant performance and privacy issues.

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(github.com)
Development

Nixon's Memoirs: A Surprisingly Intimate Look at a President

2025-07-27
Nixon's Memoirs: A Surprisingly Intimate Look at a President

This post reviews the first volume of Richard Nixon's memoirs. The author challenges preconceived notions of Nixon as an outsider, revealing a surprisingly sensitive individual who valued both power and approval. The review highlights Nixon's perspective on his relationship with Eisenhower, painting a picture of a complex political landscape. The piece also touches upon the momentous events of the 1960s and 70s, including Nixon's presidency, and concludes with a poignant reflection on his career, culminating in his final book, *Beyond Peace*.

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(justismills.substack.com)
Misc Nixon Memoirs

Base58 vs. Base85 Encoding: A Tale of Two Encodings

2025-07-27

Base58 and Base85 encodings represent binary data in human-readable formats. Base58, using a smaller character set, is more conservative; Base85, with a larger set, is more efficient. A key difference lies in how 'base' is defined. Base58 is crucial to Bitcoin, part of the Base58Check protocol for addresses and keys. Base85 offers a more compact alternative to Base64, found in PDFs and Git patch encoding. It works by breaking bits into 32-bit words, encoding each in base 85. Variations in Base85 alphabets lead to different outputs. Base85 boasts superior efficiency, using fewer symbols and offering better computational performance.

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(www.johndcook.com)
Development Encoding

AOHell: The Teen Hacker Who Inadvertently Pioneered Phishing

2025-07-27
AOHell: The Teen Hacker Who Inadvertently Pioneered Phishing

In the mid-90s, 17-year-old Koceilah Rekouche (aka Da Chronic) created AOHell, a program that unleashed a massive attack on AOL. Driven by outrage at AOL's inaction against child predators and the inability to afford online access, AOHell's impact transcended its initial purpose. It inadvertently pioneered automated phishing, becoming a foundational technique in modern cybercrime. While Da Chronic gained notoriety as AOL's most famous hacker, AOHell also served as a free and creative outlet for countless young programmers, shaping a generation of technologists. Years later, Rekouche reflects on the complex legacy of his creation, acknowledging both its damaging consequences and surprising influence on the digital world.

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(finance.yahoo.com)
Tech

StackSafe: Conquering Stack Overflow in Recursive Rust

2025-07-27
StackSafe: Conquering Stack Overflow in Recursive Rust

Recursive functions in Rust are prone to stack overflows, crashing your program. StackSafe solves this by automatically growing the stack in recursive functions and data structures. Simply add the `#[stacksafe]` attribute, and your code works without crashes. Used in production by ScopeDB for petabyte-scale data, StackSafe provides complete protection for both recursive functions and their derived traits (like `Debug`, `Clone`, `Drop`), offering comprehensive stack safety and debug-time checks to catch potential overflows early.

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(fast.github.io)
Development stack overflow

Beetroot Juice, Oral Microbiome, and Blood Pressure in Older Adults

2025-07-27
Beetroot Juice, Oral Microbiome, and Blood Pressure in Older Adults

A new study reveals that the blood pressure-lowering effect of nitrate-rich beetroot juice in older adults may be linked to specific changes in their oral microbiome. Researchers found that after two weeks of consuming concentrated beetroot juice twice daily, older adults experienced a decrease in blood pressure, unlike younger participants. This effect is likely due to the suppression of potentially harmful oral bacteria, impacting the conversion of nitrate to nitric oxide, crucial for vascular health. The study suggests that encouraging older adults to consume more nitrate-rich vegetables could offer significant long-term health benefits.

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(news.exeter.ac.uk)
Tech beetroot juice blood pressure oral microbiome

AI is Killing the Web: A Human Author's Plea

2025-07-27
AI is Killing the Web: A Human Author's Plea

Two articles in *The Economist* highlight how AI-powered answer engines are destroying the web's business model. Search engines now provide AI-generated answers instead of linking to web pages, reducing the incentive for creating original content and leading to declining web quality. The author uses personal experiences to illustrate issues like AI plagiarism and inaccurate content, calling for a rejection of AI-generated content to preserve originality and authenticity on the web. The author concludes by using a unique owl emoji to mark their articles as purely human-created.

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(eclecticlight.co)
Tech web content originality

BlueOS: A Lightweight, Secure, and General-Purpose Rust Kernel

2025-07-27
BlueOS: A Lightweight, Secure, and General-Purpose Rust Kernel

BlueOS is a lightweight, secure, and general-purpose operating system kernel written in Rust. It's POSIX-compliant, supports the Rust standard library, and currently supports ARM32, ARM64, RISCV32, and RISCV64 architectures with QEMU emulation. Hardware board support is under development. The project includes the core kernel, a custom libc implementation, example applications, and comprehensive documentation, providing a complete environment for developers.

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(github.com)
Development

Yellowstone's Wolf Reintroduction: Aspen Saplings Thrive After 80-Year Absence

2025-07-27
Yellowstone's Wolf Reintroduction: Aspen Saplings Thrive After 80-Year Absence

For the first time in 80 years, a new generation of young aspen trees is flourishing in Yellowstone National Park's northern range, thanks to the reintroduction of gray wolves in 1995. The wolves' presence controlled elk populations, reducing overgrazing that had previously prevented aspen saplings from establishing themselves. A new study published in Forest Ecology and Management highlights the significant ecological benefits of restoring top predators. The recovery of aspen is boosting biodiversity, benefiting various species including berry-producing shrubs, insects, birds, and beavers.

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(www.livescience.com)
Tech Yellowstone Wolves Ecosystem Restoration

The Optimization Challenges of Low-Level Languages and the Future of Polyglot Programming

2025-07-27

A recurring problem in modern “low-level” languages is the difficulty in optimization due to their disconnect from hardware. The author uses Haskell and Futhark as examples, highlighting the advantages of functional languages in optimization. Their restrictive design and referential transparency allow compilers more freedom to optimize. However, some scenarios still require low-level operations, such as Rust's `unsafe` blocks. The article ultimately advocates for a polyglot programming paradigm, building meta-languages to let developers easily choose the right tool for the job, such as inline Futhark or Datalog, ultimately improving overall performance and addressing optimization challenges.

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(jyn.dev)
Development

Three High-Performance RISC-V Processors on the Horizon

2025-07-27
Three High-Performance RISC-V Processors on the Horizon

Several high-performance RISC-V processors are slated for release in the latter half of 2025: the UltraRISC UR-DP1000, Zhihe A210, and SpacemIT K3. While details are still emerging, the UR-DP1000, an octa-core 64-bit RISC-V SoC, will power Shenzhen Milk-V Technology's Titan mini-ITX motherboard. The Zhihe A210 boasts impressive AI inference capabilities, reaching up to 12 TOPS (INT8). The SpacemIT K3, based on the X100 core, offers strong vector computing performance. While full specifications are yet to be released, these processors represent significant advancements in the RISC-V ecosystem and are expected to become available in 2026.

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(www.cnx-software.com)
Hardware Processors

Debugging Bash Scripts: Gracefully Handling `set -e` Errors

2025-07-27

This article presents a neat trick for gracefully handling errors triggered by `set -e` in Bash scripts. By using `trap 'echo "Exit status $? at line $LINENO from: $BASH_COMMAND"' ERR`, you can print information like the error line number, failing command, and exit status when the script encounters an error, making debugging easier. This leverages Bash-specific features: `$LINENO`, `$BASH_COMMAND` environment variables, and the `ERR` trap condition. Other shells like sh may behave differently and might not fully support this functionality.

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(utcc.utoronto.ca)
Development script debugging

China's 'Thousand Sails' Megaconstellation Faces Major Delays

2025-07-27
China's 'Thousand Sails' Megaconstellation Faces Major Delays

China's ambitious 'Thousand Sails' (G60 Starlink) constellation, aiming for over 15,000 satellites by 2030 to provide global internet access, is facing significant delays. Only 90 satellites have been launched, far short of the 648 target for the end of 2025. The shortfall stems from a severe rocket shortage, hindering the project's ability to compete with SpaceX's Starlink. To meet its goals, the project needs to launch over 30 satellites per month, a pace currently unattainable.

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(www.scmp.com)
Tech satellite constellation space launch

Beyond Good and Evil: A Philosophical Contemplation of Entanglement with Nature

2025-07-27
Beyond Good and Evil: A Philosophical Contemplation of Entanglement with Nature

This article explores the entangled relationship between humanity and nature, and the ethical dilemmas inherent within this relationship. From the perspectives of philosopher Friedrich Nietzsche and eco-philosopher Val Plumwood, the article challenges anthropocentric views, arguing that humanity is not a separate entity from nature but rather a part of its food chain. Plumwood's crocodile attack experience, along with Nietzsche's critique of free will and suffering, prompts a re-evaluation of our relationship with nature, considering how to transcend traditional dualistic morality to coexist harmoniously. The article also warns against the risks of blindly pursuing purity and health, pointing out that embracing entanglement is not easy and requires us to redefine ourselves and our interests.

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(aeon.co)
Misc Nietzsche

Komoot's Fall: A Capitalist Trap for Community Platforms

2025-07-27
Komoot's Fall: A Capitalist Trap for Community Platforms

This article recounts the story of the popular route-planning platform Komoot after its sale to a private equity firm. Komoot's founders broke their promise, selling the company and leading to 80% of employees being laid off and millions of users suffering losses. The author argues that Komoot's experience is not an isolated incident but a manifestation of the capitalist value extraction mechanism, revealing the broken relationship between corporations and communities. The article calls for the creation of open-source, non-profit platforms to combat capitalist exploitation and protect digital common resources.

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(bikepacking.com)
Startup community platforms

Yahoo's Rise and Fall: From Internet King to Forgotten Giant

2025-07-27
Yahoo's Rise and Fall: From Internet King to Forgotten Giant

Yahoo, once the undisputed king of the internet portal, has fallen from grace. This article recounts Yahoo's tumultuous journey from its founding in 1994 to its 2016 sale to Verizon. Yahoo initially rose to prominence with its well-organized directory-style search engine and content aggregation, reaching a market capitalization exceeding $100 billion. However, a series of disastrous acquisitions, such as Broadcast.com and Geocities, coupled with missed opportunities to acquire Google and Facebook, led to its decline. Yahoo was eventually sold for $4.8 billion, marking the end of a once-dominant internet empire. Only its shrewd investment in Alibaba remains a bright spot in its legacy.

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(dfarq.homeip.net)
Tech
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