1.Kagi News(Kagi News)
Kagi News Overview
Kagi News is a new daily news service that delivers global news in a private and concise manner. It addresses the common frustrations with traditional news, such as constant notifications and misleading headlines, by providing a more straightforward and respectful approach to information.
Key Features:
- Daily Briefing: A single news update is released each day, allowing for a focused reading experience.
- Five-Minute Read: The briefings summarize important news in just five minutes, eliminating the need for endless scrolling.
- Diverse Perspectives: The platform curates news from various sources to present a well-rounded view, avoiding echo chambers.
- Privacy Respect: Kagi News does not track users or monetize their attention, ensuring reader privacy.
- Community-Curated Sources: The news sources are openly curated by the community, allowing anyone to contribute or suggest changes.
- Customizable Experience: Users can adjust their settings to prioritize topics and stories that interest them most.
- Multilingual Support: News is available in multiple languages, with original stories provided and translated as needed.
Kagi News aims to transform how we consume news by prioritizing essential information and respecting readers' time and privacy. Interested users can download the app on various platforms.
2.Why I no longer recommend Julia(Why I no longer recommend Julia)
No summary available.
3.Comprehension debt: A ticking time bomb of LLM-generated code(Comprehension debt: A ticking time bomb of LLM-generated code)
Summary: Comprehension Debt in LLM-Generated Code
Developers are finding it increasingly time-consuming to modify or fix code created by Large Language Models (LLMs). This situation resembles working with old legacy systems, where understanding the code is crucial before making changes. However, the rapid generation of large amounts of code by LLMs is creating a new issue called "comprehension debt," as teams often produce code faster than they can comprehend it.
Some teams prioritize speed and check in code that hasn't been fully reviewed or tested, leading to potential problems when changes are needed. While LLMs can assist in coding, they don't always provide the right fixes, and developers frequently encounter "doom loops" where they struggle to get the LLMs to resolve issues.
Ultimately, developers will often need to edit the code themselves, resulting in additional time spent on understanding it—this is the "comprehension debt" that is accumulating as LLM-generated code becomes more common.
4.AI will happily design the wrong thing for you(AI will happily design the wrong thing for you)
The author discusses their book, "Products People Actually Want," clarifying that they are not against AI tools. Instead, they see AI as a valuable resource that enhances creativity and productivity. However, the main issue is how people use AI. Many create products without understanding if there's a real need for them, leading to poorly designed solutions.
AI can help speed up the design process, but it often lacks the thoughtful details that make products appealing. The author emphasizes that AI should not replace critical thinking and genuine curiosity about users' needs. Successful designers will be those who use AI to enhance their work while maintaining a deep understanding of what users want.
The author uses AI tools for specific tasks but stresses that mastering human judgment and taste is crucial. The goal is to combine human insight with AI capabilities. The real challenge lies in knowing how to use AI effectively, rather than avoiding it. The future belongs to those who can integrate AI into their creative processes while still focusing on the essential human aspects of design.
5.Meta's Teen Accounts Are Sugar Pills for Parents, Not Safety for Kids(Meta's Teen Accounts Are Sugar Pills for Parents, Not Safety for Kids)
Meta's new "Teen Accounts" on Instagram and other platforms are marketed as a way to make parents feel secure about their teens using social media. However, a recent report reveals that these accounts do not effectively keep kids safe. Of 47 safety tools tested, only 17% worked as promised, while many were ineffective or discontinued.
The report highlights that, despite claims of limiting harmful content and providing parental oversight, teens still encounter inappropriate material and bullying on Instagram. Meta has denied the report's findings, maintaining that they are committed to protecting teens.
Former Meta executive Arturo Béjar criticized the company's focus on its image rather than genuinely improving safety features. He argues that the perception of safety created by Teen Accounts misleads parents and regulators, allowing Meta to avoid accountability.
The piece compares Meta's approach to the tobacco industry's historical tactics, suggesting that like light cigarettes, Teen Accounts are a superficial solution that prioritizes profit over child safety. Until stronger regulations are in place, such as the Kids Online Safety Act (KOSA), parents are advised to be cautious and consider keeping their teens off social media altogether. Other companies, like Pinterest, are showing that better safety practices are possible.
6.dgsh – Directed Graph Shell(dgsh – Directed Graph Shell)
Summary of dgsh (Directed Graph Shell)
dgsh (pronounced "dagsh") is a Unix-style shell that allows users to create complex data processing pipelines using existing Unix tools and custom components. It enables non-linear operations and processes data across multiple processor cores to enhance efficiency.
Key Features:
- Directed Acyclic Process Graphs: dgsh allows the creation of workflows that can process data in a directed manner, improving throughput.
- Inter-process Communication:
- Multipipes: Connect commands with multiple input and output channels. For example, the
comm
command can produce three outputs based on two inputs. - Multipipe Blocks: These blocks can run multiple commands in parallel, sending and receiving multiple streams of data.
- Stored Values: Allows processes to share computed values asynchronously, using named buffers.
- Multipipes: Connect commands with multiple input and output channels. For example, the
Syntax:
- The shell script syntax extends that of bash, incorporating multipipe blocks which execute commands in parallel.
- Example:
{{ echo hello & echo world & }} | paste
combines outputs from two echo commands.
Adapted Tools:
Several Unix tools have been modified to support multiple input and output streams within dgsh, enhancing their functionality.
Installation:
dgsh can be installed on Debian, Ubuntu, FreeBSD, and Mac OS X. Users need certain development tools and libraries to compile it. The installation involves cloning the source code from GitHub, configuring, compiling, and installing.
Documentation:
dgsh comes with detailed manuals for its commands and functions, suitable for reference and printing.
dgsh is aimed at users looking for a powerful way to handle big data processing with enhanced flexibility and performance.
7.Deml: The Directed Acyclic Graph Elevation Markup Language(Deml: The Directed Acyclic Graph Elevation Markup Language)
Summary of DEML (DAG Elevation Markup Language)
DEML is a new language designed to represent Directed Acyclic Graphs (DAGs) more effectively than existing languages like Graphviz's DOT and Mermaid JS. It uses a unique structure that organizes nodes based on elevation, similar to how rivers flow downstream.
Key Features of DEML:
- Elevation Markers: Represented by "----" on a new line, these markers indicate significant clusters of nodes.
- Node Definitions: Each node is defined by the first word on a line. Nodes can have inputs and outputs, indicated by "<" and ">", with multiple outputs separated by "|".
- Task Management with Dagrs: A library called Dagrs allows users to run tasks with dependencies defined in a DAG. Commands can be associated with nodes using "=".
Example Comparisons:
- YAML vs. DEML: The text provides a comparison between YAML and DEML syntax for defining tasks, showing how DEML is more concise and readable.
Conversion to Mermaid JS: DEML files can be converted to Mermaid Diagram files for visual representation using the command deml mermaid -i <inputfile> -o <outputfile>
.
Goals:
- Promote the use of elevation-based DAG representation.
- Enable running DAGs with the Dagrs library.
- Facilitate conversion of DEML files to Mermaid diagrams.
- Implement syntax highlighting for DEML.
- Add features to label edges.
Inspiration: The idea for DEML arose from the challenges of function declaration order in programming languages like C, considering how a structured order could benefit DAG representations.
Licensing: DEML is available under the Apache License 2.0 and MIT License, allowing for flexible use and contributions.
8.Visualizations of Random Attractors Found Using Lyapunov Exponents(Visualizations of Random Attractors Found Using Lyapunov Exponents)
No summary available.
9.Google CTF 2025 – webz : Exploiting zlib's Huffman Code Table(Google CTF 2025 – webz : Exploiting zlib's Huffman Code Table)
No summary available.
10.Bcachefs removed from the mainline kernel(Bcachefs removed from the mainline kernel)
No summary available.
11.How the AI bubble ate Y Combinator(How the AI bubble ate Y Combinator)
No summary available.
12.BrowserPod: In-browser full-stack environments for IDEs and Agents via WASM(BrowserPod: In-browser full-stack environments for IDEs and Agents via WASM)
Summary of BrowserPod Introduction
BrowserPod is a new technology that allows full-stack development environments to run directly in web browsers using WebAssembly. It is a more powerful alternative to existing tools like WebContainers, featuring advanced networking and support for multiple programming languages.
Key Features:
- Client-Side Containers (Pods): Runs entirely in the browser without needing server resources, allowing multiple Pods to operate simultaneously.
- Concurrency: Uses WebWorkers for running multiple processes at once.
- File System: Offers a scalable, privacy-focused local file system.
- Networking: Can expose services to the internet through Portals, enabling easy sharing and testing of applications across devices.
Use Cases: Ideal for web-based IDEs and educational tools, BrowserPod initially focuses on Node.js but plans to support Python and Ruby soon.
Technical Background: Built on experience with WebVM, BrowserPod utilizes a new kernel system called CheerpOS, which allows Linux code to run in the browser. Node.js is compiled to work efficiently with this system.
Licensing and Availability: BrowserPod will be available with a free license for non-commercial use and a pay-as-you-go model for businesses. It is set to launch in late November 2025, with ongoing updates planned for additional language support.
Community Engagement: Users can join a Discord server for updates and support. The development team encourages feedback and collaboration from the community.
In summary, BrowserPod aims to enable seamless development directly in browsers, enhancing accessibility and collaboration for developers.
13.How Does Lossless Compression in Fuji RAF Files Work? (2020)(How Does Lossless Compression in Fuji RAF Files Work? (2020))
The text explains how lossless compression works for Fuji RAF files in digital photography. Here are the key points simplified:
-
Project Background: The author spent three months learning about digital photography and wanted to understand how Fuji's lossless compression algorithm reduces file sizes without sacrificing quality.
-
Compression Basics: Fuji's algorithm compresses image data by:
- Adaptive: It adjusts based on previously processed data.
- Differential: It stores the difference between an expected pixel value and the actual value.
-
Process Steps:
- Split the Image: The image is divided into vertical stripes, allowing for parallel processing, which speeds up encoding and decoding.
- Color Collation: Pixels are organized into color vectors to minimize differences between neighboring pixels, which helps in compression.
- Encoding Differences: The algorithm calculates an expected color value, finds the difference from the actual value, and encodes this difference more efficiently than storing the full value.
-
Handling Large Differences: If differences exceed a certain range, the algorithm uses a variable-length coding system to efficiently encode these larger values, while also incorporating a failsafe for extremely large differences.
-
Adaptability: The algorithm can adjust how many bits are used for encoding based on the image content, optimizing the storage for areas with little variation versus those with high contrast.
-
Effectiveness: The compression algorithm typically reduces file sizes by 35-50%, making it efficient compared to other formats.
-
Decompression: The decompression process is similar to compression but in reverse, allowing for the reconstruction of the original image.
-
Learning Experience: The author found value in understanding the algorithm, appreciating the engineering behind it, and sharing insights for future digital photography enthusiasts.
Overall, the article provides a comprehensive overview of how Fuji's lossless compression works while highlighting the author's journey in mastering the technology.
14.Airgoods (YC S23) Is Hiring(Airgoods (YC S23) Is Hiring)
No summary available.
15.Geolocation and Starlink(Geolocation and Starlink)
No summary available.
16.Electronic Arts to be acquired for $52B in largest private equity buyout(Electronic Arts to be acquired for $52B in largest private equity buyout)
Electronic Arts (EA), known for games like "Madden NFL" and "The Sims," is being acquired for $52.5 billion, marking the largest private equity buyout ever. The deal will see EA's stockholders receive $210 per share from a group that includes Silver Lake Partners, Saudi Arabia’s Public Investment Fund (PIF), and Affinity Partners, led by Jared Kushner.
PIF, already a significant stakeholder in EA, will maintain its 9.9% share. This acquisition aligns with Saudi Arabia's growing interest in the gaming industry. After the deal closes, EA will become a private company, ending its 36-year run as a publicly traded entity. EA's headquarters will stay in Redwood City, California.
CEO Andrew Wilson will continue to lead the company after the buyout. The acquisition allows EA to restructure without the pressures of public investment scrutiny, despite its recent stagnant revenue. The deal is expected to finalize in early 2027, pending approval from EA's shareholders. EA's stock rose over 5% following the announcement.
17.I’ve removed Disqus. It was making my blog worse(I’ve removed Disqus. It was making my blog worse)
The author shares their decision to remove Disqus from their blog due to the introduction of unattractive and scam-like ads that detracted from the user experience and compromised privacy. Initially, they were not concerned about the ads, as they were accustomed to an ad-free internet thanks to their ad-blocking setup. However, after checking the comments and finding the ads were disruptive, they realized Disqus was negatively impacting their blog and profiting from it. The author aims to keep the blog a clean and trustworthy resource for developers and is seeking recommendations for alternative commenting systems that respect privacy. They apologize for the inconvenience and appreciate the trust of their readers.
18.Claude Code 2.0(Claude Code 2.0)
Claude Code Summary
Claude Code is a coding tool that helps you work faster by understanding your code and performing tasks like executing routines, explaining code, and managing Git workflows using natural language commands. You can use it in your terminal, integrated development environment (IDE), or by tagging @claude on GitHub.
Getting Started:
- Install it using this command:
npm install -g @anthropic-ai/claude-code
- Go to your project folder and run
claude
.
Reporting Bugs: You can report issues by using the /bug command within Claude Code or by creating a GitHub issue.
Community Connection: Join the Claude Developers Discord to connect with other users, get help, and share feedback.
Data Collection and Usage: While using Claude Code, feedback and usage data are collected. This includes information about code interactions and any issues reported.
Privacy: Claude Code has measures in place to protect your data, such as limiting how long sensitive information is kept and restricting access to user data. For more details, refer to the Commercial Terms of Service and Privacy Policy.
19.Charlie Javice sentenced to 7 years in prison for fraudulent $175M sale of Frank(Charlie Javice sentenced to 7 years in prison for fraudulent $175M sale of Frank)
Charlie Javice, the founder of the financial aid startup Frank, has been sentenced to over seven years in prison for defrauding JPMorgan Chase out of $175 million. She was convicted of exaggerating her company's customer base, falsely claiming it had over 4 million users when it had fewer than 300,000. Judge Alvin K. Hellerstein described her actions as a significant fraud.
Javice, 33, faced severe public backlash and legal consequences, similar to Elizabeth Holmes of Theranos fame. In court, she expressed remorse for her actions, admitting she made a choice she would regret for life. Prosecutors sought a lengthy sentence to deter future fraud in the startup sector, highlighting a trend of executives misrepresenting their companies to attract investment. Javice's company aimed to simplify the financial aid application process but ultimately led to her downfall.
20.A web version of Pips game (NYT domino game)(A web version of Pips game (NYT domino game))
An indie developer has created a web version of the NYT game Pips, called pipsgamer.com. This version allows infinite play across three difficulty levels: Easy, Medium, and Hard. The developer faced many challenges while building the game, including game logic and user interface design, but after 24 days of hard work, the project is complete. No signup is needed to play, and feedback is welcome to help improve the game.
21.Orbiting the Hénon Attractor(Orbiting the Hénon Attractor)
No summary available.
22.Explore Digital Edition of Printing Types from 1922(Explore Digital Edition of Printing Types from 1922)
No summary available.
23.Using the TPDE Codegen Back End in LLVM Orc(Using the TPDE Codegen Back End in LLVM Orc)
Summary: Using the TPDE Codegen Backend in LLVM ORC
TPDE is a new, open-source compiler backend for LLVM, developed by researchers at TUM, which focuses on low-latency code generation. It works with LLVM versions 19 and 20 and is well-documented for integration with Clang and Flang.
Key Features:
-
Integration with LLVM ORC: TPDE can be easily integrated into the LLVM On-Request Compilation (ORC) framework, which is used for building Just-In-Time (JIT) compilers. By customizing the JIT with TPDE, you can achieve quick code generation.
-
Basic Implementation: A sample code demonstrates how to create a TPDE compiler that compiles LLVM IR code into machine code. It shows how to handle errors if TPDE fails to compile a module and how to use LLVM’s built-in compiler as a fallback.
-
Performance: TPDE provides significant speed improvements, reportedly up to four times faster than LLVM’s built-in code generation for certain workloads.
-
Handling Unsupported Features: TPDE focuses on common use cases, meaning it might not support complex instructions. In such cases, a fallback to LLVM can be implemented, allowing for broader compatibility.
-
Concurrent Compilation: TPDE can support concurrent compilation by making the compiler instance thread-local and ensuring that access to shared resources is synchronized. This allows multiple threads to compile simultaneously, greatly reducing compile times.
Conclusion:
TPDE offers a flexible and efficient way to integrate a new code generation backend into LLVM, improving performance while maintaining compatibility with existing LLVM features. It supports concurrent compilation, making it a promising choice for applications requiring fast JIT compilation.
24.How to create an OS from scratch(How to create an OS from scratch)
Summary of the OS Tutorial
This tutorial is an old project that aims to teach you how to create an operating system (OS) from scratch. It was inspired by existing documents and the OSDev wiki but focuses on practical coding rather than theory.
Key Points:
- Target Audience: It's designed for programmers familiar with low-level computing who want to understand OS design without diving deep into theory.
- Structure: The tutorial consists of small, manageable lessons that build on each other. It's essential to follow them in order.
- Learning Approach:
- Read the README in each folder for key concepts and goals.
- Try coding the examples yourself to reinforce learning.
- Experiment with the code to deepen understanding.
- Content: The tutorial covers:
- Booting an OS from scratch
- Entering 32-bit mode
- Moving from Assembly to C
- Basic input/output handling
- Memory management, filesystem creation, and shell programming
- Future topics may include a BASIC interpreter, a GUI, and networking.
Additional Notes:
- The project is no longer actively maintained, but contributions are welcome.
- Users are encouraged to seek modern resources for more up-to-date information on OS design.
In summary, this tutorial is a hands-on approach to learning OS development, focusing on practical coding rather than theoretical concepts.
25.Design of the SCHEME-78 Lisp-based microprocessor (1980)(Design of the SCHEME-78 Lisp-based microprocessor (1980))
No summary available.
26.Claude Sonnet 4.5(Claude Sonnet 4.5)
The document is a system card for Claude, likely an AI model. It provides essential information about its capabilities, features, and guidelines for use. The key points include:
- Purpose: Claude is designed to assist with various tasks, including generating text and providing information.
- Capabilities: It can understand and produce human-like text, answer questions, and engage in conversations.
- Usage Guidelines: Recommendations on how to interact with Claude effectively and responsibly.
- Limitations: Acknowledges areas where Claude may not perform perfectly or might have biases.
For more detailed information, refer to the specific document link provided.
27.Safe zero-copy operations in C#(Safe zero-copy operations in C#)
Summary: Safe Zero-Copy Operations in C#
C# is a flexible programming language that allows for both high-level and low-level coding. While low-level code can enhance performance by avoiding bounds-checking, it can also introduce risks like crashes and security vulnerabilities.
To improve safety and performance, C# introduces a concept called "span," which is an immutable type that combines a pointer to data with its length. This allows the compiler to ensure safe memory access without bounds-checking, making it efficient for operations on portions of arrays.
Spans can be used in function signatures, allowing for zero-copy operations, which means you can work with sub-portions of arrays without creating new copies. This leads to better memory efficiency and performance, especially in scenarios like string manipulation or sorting algorithms.
Key takeaways:
- Use spans instead of arrays for better performance and safety.
- Spans allow for safe memory operations without the risks associated with unsafe code.
- Embrace spans to enhance your C# programming practices.
28.Bad Apple but it's played inside Super Mario Bros(Bad Apple but it's played inside Super Mario Bros)
The text celebrates the release of a new TAS (Tool-Assisted Speedrun) of Super Mario Bros., showcasing the execution of arbitrary code. Here are the key points:
-
Background: Last year, an initial TAS was submitted that faced issues with emulator sync. After improvements, a new TAS was created that successfully executes a larger payload and syncs on console.
-
Arbitrary Code Execution (ACE): This technique allows the game to run custom code, manipulating the game’s RAM to execute commands. The TAS utilizes a modified version of the emulator to set up the game environment.
-
Setup: The TAS begins in a hidden world (world 'N') that can be accessed through specific RAM manipulation. This allows for exploiting game mechanics to execute arbitrary code.
-
Game Mechanics: The TAS explores how defeating Bowser in world 'N' leads to unexpected behavior that allows the code execution to occur via an "Open Bus" state.
-
Code Execution: The payload written into RAM reads controller inputs and executes commands, enabling the playback of the "Bad Apple!!" music video alongside gameplay.
-
Graphics Rendering: The TAS faced challenges in rendering graphics due to limitations in how the NES handles tiles. The creator developed a process to convert video frames into NES-compatible graphics.
-
Objectives: The primary goals of the TAS included executing arbitrary code, playing the music video, achieving a high score, and completing the game in a specific time.
Overall, this TAS showcases a combination of technical skill and creativity in manipulating and optimizing gameplay mechanics in Super Mario Bros..
29.I'm 17, built a face-verified social network to fight fake accounts(I'm 17, built a face-verified social network to fight fake accounts)
Arun, a 17-year-old from India, has created a social app called WhiteLotus, focusing on authentic interactions. Unlike regular platforms, WhiteLotus verifies users' identities through AI to ensure there are no fake accounts or bots. Key features include:
- Face verification for one account per person
- Private chats only with friends
- Visual photo-based posts
- Community groups based on "Kingdoms" (Fire, Water, Earth, Air)
- A leveling system to show user activity and trustworthiness
- "TrustNotes" for friends to leave comments about each other
Currently, the app has about 44 users, and Arun is looking for feedback on whether it solves a real problem, what might encourage people to use it, and how he can grow the app as a solo developer. He believes there's a niche for a more genuine social experience amidst the dominance of larger platforms like Instagram and Snapchat. You can find WhiteLotus on the Play Store.
30.The ABS programming language(The ABS programming language)
Summary of the ABS Programming Language
ABS is a programming language designed to simplify shell scripting, making it enjoyable to use. Its syntax is similar to popular languages like Ruby, Python, and JavaScript. For example, you can create a dictionary and loop through numbers easily.
Key features include:
- Familiar Syntax: It uses a straightforward style that many programmers will recognize.
- Integration with System Commands: ABS allows for seamless use of system commands, making it perfect for shell scripting.
- Easy to Run: You can quickly execute scripts on Mac, Windows, and Linux by simply typing a command.
Overall, ABS aims to enhance the scripting experience with user-friendly features.
31.What are you working on? (September 2025)(What are you working on? (September 2025))
The text is asking someone about their current projects and if they have any new ideas they are considering.
32.Loadmo.re: design inspiration for unconventional web(Loadmo.re: design inspiration for unconventional web)
loadmo.re is a gallery of mobile websites that highlights unique and creative designs for smartphones. It aims to inspire digital designers to focus on mobile-first experiences, reflecting the current trend of users interacting with the internet mainly through their phones. The platform encourages discussions about mobile design within the digital community. For updates, follow loadmo.re on Instagram.
33.Implementing a Kalman Filter in Postgres(Implementing a Kalman Filter in Postgres)
The article discusses implementing a Kalman Filter in Postgres to improve the accuracy of noisy GPS data. GPS data can be unreliable due to factors like satellite drift and device errors, which can distort analysis results. The Kalman Filter helps smooth out this noise by estimating the true position of moving objects based on noisy measurements.
Traditionally, Kalman Filters are used in programming environments like Python, but applying them directly in Postgres has advantages, including immediate results and scalability. Traconiq has created an open-source project on GitHub that implements this filter in Postgres.
Key Points:
- Kalman Filter: A method to estimate true positions from noisy GPS data by combining predictions and updates based on new observations.
- Implementation in SQL: Challenges include maintaining state, processing data in order, and updating estimates with each new measurement.
- Online vs. Offline Filtering: Online filtering gives immediate results but slows down data insertion. Offline filtering is more efficient, especially with custom aggregates.
- Performance: Benchmarks show that online filtering reduces throughput by 35-40%, while offline filtering with custom aggregates performs best.
The project is available on GitHub, and users can experiment with the implementation, including creating schemas, testing filtering methods, and running performance benchmarks. Neon’s serverless architecture is recommended for testing.
34.Devbox – Containers for better dev environments(Devbox – Containers for better dev environments)
Devbox is a lightweight, open-source command-line tool designed to create isolated development environments using Docker. It aims to simplify the development process by avoiding dependency issues and clutter on a VPS. Key features include:
- Easy Setup: Start a new project with a single command (
devbox init my-project
) and access it usingdevbox shell
. - JSON Configuration: Use a
devbox.json
file to specify packages and services, making it easy to share setups with teammates. - Docker-in-Docker: Run containers inside your environment without extra setup.
- Direct Code Editing: Edit code on your host machine while the container manages execution.
- Quick Start Templates: Pre-built templates for various programming languages and web development.
- Advanced Options: Customize port mapping, environment variables, resource limits, and more.
Devbox is free and open-source (MIT license), primarily for Linux (Debian/Ubuntu or WSL2 on Windows), and easy to install. For more information, visit the launch page or the GitHub repository. Feedback and contributions are welcome to help develop the tool further.
35.iRobot Founder: Don't Believe the AI and Robotics Hype(iRobot Founder: Don't Believe the AI and Robotics Hype)
Summary of iRobot Founder Rodney Brooks' Views on AI and Robotics
Rodney Brooks, the founder of iRobot and a veteran in robotics and AI, advises caution against the current hype surrounding these technologies. He emphasizes that while generative AI and robotics are rapidly advancing, the reality of their deployment will take longer than many expect. Brooks argues that flashy demonstrations often overlook the complexities of real-world applications, warning that expectations for humanoid robots are unrealistic.
He shares insights from his new company, which uses smart carts in warehouses to help human workers reduce fatigue and improve efficiency, emphasizing that humans remain essential in many tasks. Brooks also critiques the misconception that robots need to resemble humans, suggesting that non-humanoid solutions are often more effective.
Despite advancements in processing power and sensors, Brooks believes challenges remain in making robots that can effectively adapt to messy environments. He predicts the next significant innovations may come from unexpected places, like Nigeria, which he believes will emerge as a technological hub due to its growing population and pressing problems.
Brooks advocates for a diversified educational approach that fosters critical thinking and problem-solving, especially as generative AI changes the landscape of knowledge and information interaction. He views himself as a realist regarding AI developments, noting that while the influx of funding may accelerate progress, much of it may also be wasted on impractical projects. Ultimately, Brooks encourages a balanced perspective that recognizes both the potential and limitations of AI and robotics.
36.Instant Checkout and the Agentic Commerce Protocol(Instant Checkout and the Agentic Commerce Protocol)
The Agentic Commerce Protocol is a new framework aimed at improving online commerce. You can find more information on their official page and related resources. Key documents include a ChatGPT page for merchants and a blog post from Stripe that discusses the development of an open standard for this protocol. The goal is to create a more efficient and accessible way for businesses to operate online.
37.Imgur Access in the United Kingdom(Imgur Access in the United Kingdom)
Starting September 30, 2025, users in the United Kingdom will no longer be able to access Imgur. This means they won't be able to log in, view content, or upload images. Content from Imgur on other websites will also not be visible to UK users.
UK users can still exercise their data rights, like requesting a copy of their data or deleting their accounts, without logging in by using the Help Center. Imgur may ask for information to confirm your identity and will respond according to UK data protection laws. They may continue to keep some personal data for legal reasons, and more details can be found in their Privacy Policy. For further assistance, users can contact Support.
38.A tutorial for the Mercury programming language(A tutorial for the Mercury programming language)
Summary of A Mercury Tutorial
1. Introduction
- The tutorial introduces Mercury, a logic-functional programming language that some find challenging to learn due to its unconventional nature. It highlights the importance of perseverance in mastering it.
2. Prerequisites: Logic Programming
- Basic knowledge of logic programming, particularly Prolog, is helpful. Key concepts include:
- Unification: Matching terms (variables, atoms, functors) to create substitutions.
- Resolution: A method to solve goals by unifying them with rules or facts.
- Cut: A feature that commits to choices made in resolution, affecting backtracking.
- Disjunction: Allows for multiple possible subgoals in logic.
3. First Example: Rall
- The example program "rall" converts Unix-style newlines (LF) to Windows-style newlines (CRLF).
3.1. File and Module Names
- Each Mercury file is a module named after the file (e.g.,
rall.m
).
3.2. Entry Point
- The main function must be defined as
main/2
, accepting twoio.state
parameters for input and output.
3.3. Command Line Arguments
- Uses
io.command_line_arguments
to get input and output file names, checking for correct usage.
3.4. File Handling
- Opens input and output files using
open_input
andopen_output
, handling errors appropriately.
3.5. Data Processing
- Reads characters from the input stream, replacing LF with CRLF, until reaching the end of the file.
3.6. Full Program Listing
- The complete code of the
rall
program demonstrates the concepts covered, including error handling and file operations.
This tutorial serves as an introduction to learning Mercury through practical coding examples, focusing on fundamental logic programming concepts.
39.Awakening Bell(Awakening Bell)
No summary available.
40.A SQL Heuristic: ORs Are Expensive(A SQL Heuristic: ORs Are Expensive)
Summary
When writing SQL queries, using "OR" conditions can be slow and inefficient compared to "AND" conditions. For example, a query counting applications by either submitter or reviewer ID takes over 100ms, while rewriting it with separate counts for each condition can make it run in under 1ms.
Key Points:
-
Query Planning: SQL queries with multiple filters can be complex. Using "AND" is generally more efficient than "OR" because it reduces the amount of data processed.
-
Indexes: Indexes help speed up searches. Using separate indexes requires careful consideration of which filter to apply first, based on the distribution of data. If one filter is much more common than the other, it can lead to reading more data than necessary.
-
Handling "OR" Conditions:
- For "OR" queries, the database must merge results from separate filters or scan the entire dataset, which is costly.
- Using a "UNION" can sometimes be more efficient than directly using "OR".
-
Schema Design: Good schema design can improve query performance. It’s often beneficial to create separate tables to represent different types of relationships (e.g., user roles) rather than putting multiple similar columns in one table.
-
Inheritance in Tables: Restructuring tables to inherit from a base table can simplify queries and improve performance by allowing a single index for shared columns.
-
Practical Tips:
- Focus on access patterns when designing schemas.
- If you rarely use "OR" queries, you can design without worrying about their impact. However, be aware that requirements may change over time.
By understanding these concepts, developers can write more efficient SQL queries and design better database schemas.
41.ProcASM v1.1(ProcASM v1.1)
ProcASM is a visual programming language that I created. After receiving feedback on its user interface (UI), I spent the last few months improving it. Previously, the app used a custom GUI library built with SDL3, but now the front-end is made with HTML, CSS, and JavaScript for better web compatibility. The back-end is a server that stores user projects and manages requests. There’s also a tutorial available with text and videos to help users. I hope the new UI will make it easier for people to use ProcASM. In the future, I plan to create new software with ProcASM and share my experiences and its benefits through a blog.
42.Voronoi map generation in Civilization VII(Voronoi map generation in Civilization VII)
Summary of Map Generation Improvements in Civilization VII
Ken Pruiksma, a Senior Graphics Engineer at Firaxis Games, shares updates on map generation for Civilization VII. Initially, the game used a method that created balanced but predictable maps, which led to repetitive gameplay. Feedback from players highlighted that the straight-edged coastlines detracted from the game's immersive experience.
To address these issues, the latest update (1.2.5) introduces two new map types: "Continents and Islands" and "Pangea and Islands," using a new Voronoi map generation technique. This method allows for more natural and varied maps by dynamically growing landmasses with specific rules, enhancing the exploration experience.
Key features of the Voronoi technique include:
- Randomly placing points to create "cells" that represent tectonic plates.
- Each plate grows following configurable rules, influencing landmass formation.
- The final map includes varied coastlines, mountain ranges, and island placements, making each game unique.
While 95% of maps will have a standard layout for natural gameplay, there is a chance for unusual configurations, adding excitement to exploration. The new maps will be the default in single-player games, but the old maps are still available for multiplayer.
This update is just the beginning, with plans for more customization and options in the future. Modders can access the new Voronoi map generation scripts to create their own map types. Players are encouraged to share their map experiences on social media and the Civ Discord.
43.Code golfing a tiny demo using maths and a pinch of insanity(Code golfing a tiny demo using maths and a pinch of insanity)
The text describes the creation of a small graphics demo using GLSL code that renders a procedural scene without textures or 3D models. Key points include:
-
Demo Overview: The demo is a GLSL shader that generates an image based on mathematical formulas, fitting within 462 characters. It emphasizes "code golfing," which is about writing code in the shortest way possible.
-
Basic Structure: The code operates on each pixel, using inputs like canvas resolution, time, and pixel position. It outputs color values for each pixel.
-
Techniques Used:
- The demo employs sine wave combinations for creating noise patterns that represent mountains and clouds.
- It uses ray-marching for rendering 3D scenes, which involves calculating distances to surfaces iteratively.
-
Noise Function: A custom noise function is used to create variations in the terrain and cloud density, focusing on speed and compact size.
-
Camera and Movement: The camera setup is designed to maintain a specific viewpoint while allowing for dynamic movement and rotation within the scene.
-
Final Touches: The demo incorporates features like color adjustments and atmospheric effects, such as fog and clouds, enhancing the visual experience.
-
Code Optimization: The text discusses various code optimization techniques, aiming to reduce character count while maintaining functionality.
Overall, the article showcases the intersection of programming, mathematics, and artistic expression in creating a visually engaging piece of digital art using minimal code.
44.John Jumper: AI is revolutionizing scientific discovery [video](John Jumper: AI is revolutionizing scientific discovery [video])
No summary available.
45.How has mathematics gotten so abstract?(How has mathematics gotten so abstract?)
No summary available.
46.Diminished Chandler Wobble After 2015: Link to Mass Anomalies in 2011(Diminished Chandler Wobble After 2015: Link to Mass Anomalies in 2011)
No summary available.
47.A Look into Intel Xeon 6's Memory Subsystem(A Look into Intel Xeon 6's Memory Subsystem)
Intel's latest server platform, Xeon 6, aims to improve its competitive position against AMD and Arm by using a new chiplet strategy. Unlike previous designs, Xeon 6 features chiplets arranged side by side with enhanced scalability, allowing for more cores—up to 128 per socket with three compute dies and two I/O dies. This setup is designed to improve performance and memory handling.
AWS has made Xeon 6 instances available for testing. The Xeon 6 6985P-C model includes 96 cores that operate at a maximum of 3.9 GHz and support advanced features like AVX-512, which enhances machine learning tasks. It also has a large L3 cache and uses a mesh interconnect to maintain efficient data transfer between cores.
The memory system includes 1.5 TB of fast DDR5 RAM, configured to optimize access times by dividing the chip into three NUMA nodes. This is intended to reduce latency and improve performance when cores access memory.
In performance tests, Xeon 6 showed improvements in bandwidth compared to previous Intel generations, but it still lags behind AMD in memory latency and efficiency. While the design offers advantages like a unified L3 cache and lower core-to-core latency, it also presents challenges, particularly with higher latencies when accessing memory across die boundaries.
Overall, while Xeon 6's architecture has made significant strides, Intel faces ongoing challenges in maintaining its edge in server performance against AMD's offerings. Future developments, including a new core design, are anticipated to further enhance Intel's competitive capabilities.
48.Subtleties of SQLite Indexes(Subtleties of SQLite Indexes)
Summary: Subtleties of SQLite Indexes
In the past six months, Scour's content intake surged from 330,000 to over 1.4 million pieces, causing slower user feed rankings. To improve performance, the author learned how SQLite uses indexes, resulting in a 35% speedup for a key query.
Scour's database has an important items table with various fields, including publish date and quality rating. The ranking query filters items based on publish date, language, and quality.
Key insights for optimizing indexes include:
-
Composite vs. Single-Column Indexes: It's better to have a few good composite indexes (covering multiple columns) than many single-column indexes, as the query planner often won't combine them effectively.
-
Index Column Order: The order of columns in an index matters. More selective columns (those that reduce the result set significantly) should come first. For Scour, the best order is publish date, quality rating, then language.
-
Range Conditions: SQLite processes index columns from left to right and cannot skip columns. If a column has a range condition, it can limit the planner's ability to use other columns in the index effectively.
-
Partial Indexes: These indexes apply to a subset of rows based on specific conditions. For them to work, the query conditions must match exactly with the index conditions.
After optimizing the indexes and queries, the number of rows scanned was reduced by 66%, leading to a 35% overall speed improvement.
In conclusion, understanding how SQLite's query planner utilizes indexes is crucial for improving database performance. Key strategies include using fewer composite indexes, paying attention to column order, and ensuring exact matches for partial indexes.
49.YouTube is now full of crap AI slop(YouTube is now full of crap AI slop)
The author shares that their addiction to YouTube led them to purchase YouTube Premium and invest in Alphabet stock. They now wish for a feature that allows users to filter videos by date, specifically to see only those made before a year ago. The author feels that many others are also concerned about this issue recently.
50.Spending time with the material(Spending time with the material)
The text discusses a recent find at a comic book store: "The Making of Original Dungeons & Dragons," a comprehensive book filled with early versions of the game. The author spent hours engaging with the book, appreciating its historical edits and design. They reflect on how digital formats lack the same depth of engagement, as reading online tends to be quicker and less immersive. The author wonders if a future digital interface could replicate the physical experience of reading a book but acknowledges the challenges it presents. Ultimately, they emphasize the unique value of physical books for deep engagement and express their enthusiasm for the Dungeons & Dragons book, considering it worth the price despite its high cost.
51.European Union Public Licence (EUPL)(European Union Public Licence (EUPL))
No summary available.
52.Founder sentenced to seven years in prison for fraudulent sale to JPMorgan(Founder sentenced to seven years in prison for fraudulent sale to JPMorgan)
No summary available.
53.Can you use GDPR to circumvent BlueSky's adult content blocks?(Can you use GDPR to circumvent BlueSky's adult content blocks?)
Summary: Can GDPR Help Access BlueSky's Messages?
The article discusses the conflict between the Online Safety Act (OSA) and the General Data Protection Regulation (GDPR) regarding BlueSky, a social network. BlueSky restricts users who haven't verified their age from accessing direct messages (DMs) and explicit content, which the author finds reasonable. However, there are issues with accessing DMs due to these restrictions.
The author sent a Subject Access Request under GDPR to retrieve their DMs, believing that these messages are personal data. After a lengthy process involving reminders and escalations, BlueSky eventually provided the requested data after 64 days.
The author notes that even though they didn't verify their age, they were able to prove account ownership to access their data. They express frustration over the slow response from BlueSky and question the effectiveness of the online safety measures in place.
The author considered other methods to access DMs, like using a VPN or third-party apps, but chose to follow the official process instead. They plan to ask BlueSky to disable their inbox and notifications as a next step.
54.Managing Dotfiles with Make(Managing Dotfiles with Make)
Summary: Managing Dotfiles with Make
Make is a widely used tool for build systems, and it can also be effectively used to manage dotfiles (configuration files for user environments) because it is commonly available on most machines.
Key Points:
-
Simplicity: Make works best with a simple file structure. Organize your dotfiles in a directory (e.g.,
~/.files
) that mirrors your home directory. -
File Structure: Your configuration files (like
.bash_profile
,.bashrc
, etc.) should be symbolic links to files in this directory. Make will create these links automatically. -
Makefile Setup:
- The Makefile should define the paths for the home directory and the dotfiles repository.
- The linking rule can be written to create symbolic links based on the directory structure.
-
Metaprogramming: Make allows for generating code at runtime, which can simplify the linking rules. You can create a function that generates symbolic linking rules for any pair of directories.
-
Phony Targets: To make it easier to manage multiple dotfiles, you can create "phony targets" in your Makefile. This allows you to group files and link them all at once, rather than typing each one out individually.
Using Make for dotfile management can streamline the process and eliminate the need for additional tools.
55.Don't Become a Scientist (1999)(Don't Become a Scientist (1999))
No summary available.
56.Not all OCuLink eGPU docks are created equal(Not all OCuLink eGPU docks are created equal)
On September 29, 2025, I tested the Minisforum DEG1 GPU Dock with a Raspberry Pi 500+, using an M.2 to OCuLink adapter and a chenyang SFF-8611 cable. After discovering the dock's power button and adjusting some internal switches, I managed to get the graphics card's fans to start, but I couldn't get any output or recognition from the card.
I switched back to my JMT eGPU dock for further tests and shared a video and blog post about my experience. Some commenters mentioned they faced similar issues with the DEG1 dock and pointed out that the included OCuLink cable might have extra wires compared to others, like the one I used. I tested this theory by swapping cables and successfully connected an RX 6500 XT.
However, when I tried to connect an RX 7900 XT, it still didn't work, even after trying different cable configurations and settings. Interestingly, other cards like an Intel B580 worked fine. This inconsistency puzzled me, as I found reports of others using the RX 7900 XT with the DEG1 dock without issues.
I suspect there might be a compatibility problem with certain AMD graphics cards and the DEG1 dock. I haven't yet examined the cables to determine the difference, and it's challenging to find the specific cable used by Minisforum separately.
Overall, my experience highlights that not all OCuLink cables are the same, and there may be specific compatibility issues with certain graphics cards and the DEG1 dock.
57.ML on Apple ][+(ML on Apple ][+)
Summary: K-means Clustering Explained
K-means is a machine learning algorithm used for clustering data into groups. It is considered an easy-to-understand method, often taught in introductory courses on unsupervised learning, like Stanford's CS229.
How K-means Works:
- Initialization: Start by selecting a set number of cluster centroids (k) randomly from the data.
- Assignment: Each data point is assigned to the nearest centroid using a distance measure (Euclidean distance).
- Update: The centroids are recalculated based on the assigned data points. This process repeats until the centroids stabilize (change very little).
The algorithm's effectiveness can be visualized by its decision boundaries, which separate different clusters based on the centroids.
Implementation Details:
- The algorithm involves simple calculations, such as averaging points to find centroids and calculating distances for assignments.
- The code structure includes subroutines for better organization and potential expansion to other algorithms.
Limitations: While K-means is straightforward, it may not be the best choice when the data follows specific distributions, such as Gaussian distributions. In such cases, more advanced techniques like Expectation Maximization (EM) could yield better results.
Overall, K-means is a foundational algorithm in machine learning, useful for clustering tasks, while also serving as a stepping stone to more complex methods.
58.Visualizing Automorphisms of S6(Visualizing Automorphisms of S6)
No summary available.
59.`std::flip`(`std::flip`)
Summary of std::flip in C++
-
What is std::flip?
- It's a utility in the C++ standard library that reverses the order of parameters for functions (or callables).
-
Usefulness:
- It can simplify function calls, especially in cases where the order of arguments is inconsistent or when you want to create new functions based on existing ones with reversed parameters.
-
Example of Use:
- Consider a function that checks if one tree node is an ancestor of another. Using std::flip, you can create a new function that checks if one node is a descendant of another:
auto is_descendant_of = std::flip(is_ancestor_of);
- Consider a function that checks if one tree node is an ancestor of another. Using std::flip, you can create a new function that checks if one node is a descendant of another:
-
Origins:
- The concept of "flipping" parameters is common in functional programming and can be found in languages like Haskell, OCaml, and others.
-
Common Applications:
- Predicates: Flipping arguments of comparison functions (e.g., for sorting).
- Generic Algorithms: Simplifying functions like sorting in descending order.
- Long Subsequence Problems: Finding longest increasing or decreasing subsequences using flipped comparisons.
- Folds: Combining elements of a collection in reverse order.
- API Compatibility: Bridging inconsistent APIs that use different parameter orders.
-
Implementation Note:
- Although std::flip does not exist in C++, a custom implementation can be created with C++17 features to achieve similar functionality.
-
Conclusion:
- std::flip is a powerful tool for enhancing code reusability and simplifying function compositions, particularly in functional programming contexts.
60.Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol(Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol)
Last week, Cloudflare launched Cap'n Web, a new RPC protocol that doesn't require a specific schema. This week, I created capn-rs, a Rust version that is fully compatible with the protocol.
Key features of capn-rs include:
- Verified compatibility through integration tests with a TypeScript reference.
- Support for multiple transport methods: HTTP batch, WebSocket, and WebTransport (HTTP/3).
- A complete expression evaluator for the intermediate language (IL).
- Promise pipelining with dependency resolution.
- Comprehensive testing coverage.
One of the main challenges was adapting Cap'n Web's features to fit Rust’s type system while keeping the API user-friendly. The project was a collaboration with Claude Code, which helped with the translation but required human input for key architectural decisions.
This is still an early-stage project, and I welcome feedback on the API design and any potential edge cases. I'm also open to discussions about the protocol and the AI-assisted development process.
For more information, you can check the GitHub repository, crates, and API documentation.
61.Every single torrent is on this website(Every single torrent is on this website)
No summary available.
62.Jax: Fast Combinations Calculation(Jax: Fast Combinations Calculation)
Summary of Combinadics
Overview: Combinadics is a method for quickly calculating combinations in the JAX library, inspired by concepts from combinatorial number systems. It provides an efficient way to generate specific combinations based on their lexicographical index.
Key Code Example:
- The code demonstrates how to compute combinations using both NumPy and the combinadic method. For instance, for
n = 4
andk = 3
, the combinations generated are:- Using NumPy: (0, 1, 2), (0, 1, 3), (0, 2, 3), (1, 2, 3)
- Using Combinadics: [0, 1, 2], [0, 1, 3], [0, 2, 3], [1, 2, 3]
Combinadic Theory:
- A combinadic is a unique representation of an integer based on binomial coefficients. For example, the integer 27 can be expressed in terms of combinations of numbers from a set defined by
n
andk
. - Each number
m
between 0 and the total combinations for givenn
andk
can be represented using a combinadic formula.
Example Calculation:
- For
n = 7
andk = 4
, the combinadic of 8 is calculated step-by-step by finding suitable coefficients (c1
,c2
,c3
,c4
) that satisfy the representation ofm
.
Dual Indexes:
- Combinations have dual indexes that can be used to find corresponding combinations easily. For example, knowing one index allows you to compute its dual by simple subtraction.
Algorithm:
- To find the
m
-th combination, calculate its dual, find the combinadic for that dual, and adjust the digits to get the final combination.
Limitations:
- The current implementation works with 64-bit numbers and is optimized for performance on a single GPU.
63.California governor signs AI transparency bill into law(California governor signs AI transparency bill into law)
It seems that you've provided a link instead of a text to summarize. Please paste the text you want to be summarized, and I'll be happy to help!
64.Sandboxing AI agents at the kernel level(Sandboxing AI agents at the kernel level)
Abhinav works on the AI code review agent Greptile, which navigates the filesystem to understand the codebase. Allowing an AI agent access to the filesystem can be risky, especially in cloud environments, because malicious users could exploit it to access sensitive files.
To mitigate this risk, Greptile employs various safeguards such as sanitizing user inputs and responses. However, clever attackers might bypass these protections, so it’s essential to ensure that the agent only accesses what it should.
The article discusses how file access is controlled in Linux through the "open syscall" and explores methods to hide files from agents. Key methods include:
- Permission Checks: Files can be hidden by changing their permissions so that the agent cannot access them.
- Mount Redirection: By mounting a different filesystem over a directory, the original files become inaccessible.
- Changing the Root Directory: Using the
chroot
command, a process can be restricted to a specific part of the filesystem.
The article concludes that combining mount namespaces with root changes creates a secure environment for running code review agents, similar to how container technologies like Docker function. At Greptile, the agent runs in a secure, isolated container to ensure it only sees the necessary files, enhancing security.
65.The phaseout of the mmap() file operation in Linux(The phaseout of the mmap() file operation in Linux)
No summary available.
66.FAA is granting Boeing “limited delegation” to certify airworthiness(FAA is granting Boeing “limited delegation” to certify airworthiness)
The Federal Aviation Administration (FAA) has decided to allow Boeing to certify the safety of its own airplanes, specifically the 737 Max and 787 models, but only in a limited way. This change comes after Boeing lost its certification authority due to safety issues and crashes in previous years.
Boeing can now issue airworthiness certificates every other week, while the FAA will oversee the process during the remaining time. This arrangement aims to enhance safety oversight and allow the FAA to monitor Boeing's production practices more closely.
The FAA expressed confidence in this new system but emphasized that Boeing will still face scrutiny to ensure all safety standards are met. The exact duration of this limited certification authority and Boeing's path to regaining full trust from the FAA remains unclear.
67.Swift and top global banks working on blockchain-based overhaul(Swift and top global banks working on blockchain-based overhaul)
No summary available.
68.How the Brain Balances Excitation and Inhibition(How the Brain Balances Excitation and Inhibition)
The brain relies on a balance between two types of neurons: excitatory neurons, which stimulate others to fire, and inhibitory neurons, which prevent firing. This balance is crucial for healthy brain function; too much excitation can lead to seizures, while too little can be linked to conditions like autism.
Neuroscientists are exploring how these neurons interact and the role of a rarer third type called neuromodulatory neurons, which influence both excitatory and inhibitory neurons over longer timescales. Excitatory neurons primarily release glutamate, causing other neurons to activate, while inhibitory neurons release GABA, preventing activation.
Recent research shows that inhibitory neurons may play a more active role in memory and decision-making than previously thought, selectively reducing their activity to enhance learning. The complexity of neuron interactions and the balance of excitation and inhibition are still being studied, with potential implications for treating neurological disorders.
69.Faster Virtual Machines: Speeding Up Programming Language Execution (2023)(Faster Virtual Machines: Speeding Up Programming Language Execution (2023))
This post discusses how interpreters are built, the concept of a "virtual machine," and ways to enhance their speed.
Key Concepts:
- Virtual Machine (VM): A VM is a software implementation that executes instructions from a programming language, unlike a physical CPU that runs machine code directly.
- Bytecode: This is machine-readable code that a VM executes. It often includes operations (op-codes) and operands. Examples include Java bytecode and Python bytecode.
Our Bytecode:
The post introduces a simple bytecode format with the following characteristics:
- 1-byte op-codes: Each operation is represented by a one-byte code, sometimes followed by a four-byte operand (integer).
- Stack: It uses a stack of 32-bit signed integers for operations.
Basic Instructions:
- CONSTANT: Push a constant onto the stack.
- ADD: Pop two values and push their sum.
- PRINT: Pop and print a value.
- INPUT: Read an external value and push it.
- DISCARD: Pop a value and discard it.
- GET: Push a value from a specific offset on the stack.
- SET: Replace a value at a specific offset with a popped value.
- CMP: Compare two values and push -1, 0, or 1 based on their relationship.
- JGT: Jump to a relative instruction if a popped value is positive.
- HALT: Stop execution.
Example Program:
The post provides a sample program that multiplies two numbers using the defined bytecode.
Implementation:
A simple bytecode interpreter can be created in C using a loop and switch statement to manage the execution of bytecode instructions.
Conclusion:
The author encourages readers to understand how the bytecode reflects the pseudocode and to consider creating their own bytecode and interpreter. An interactive example is also provided to experiment with the bytecode and its execution.
70.Diagnosing a Linux Performance Regression(Diagnosing a Linux Performance Regression)
On October 14, 2024, Automattic announced that over 1,700 employees received stock grants, making them owners of the company.
71.How I Block All 26M of Your Curl Requests(How I Block All 26M of Your Curl Requests)
The blog post discusses how to block unwanted internet bot traffic, specifically using a technique called XDP (Express Data Path) on Linux systems.
Key points include:
-
Problem of Bots: Bots like DDoS attacks and web scrapers are common issues on the internet.
-
XDP Overview: XDP allows faster processing of network requests by working closely with the network hardware. It can handle up to 26 million packets per second.
-
Using eBPF: The implementation relies on eBPF (Extended Berkeley Packet Filter), which lets you run custom filtering programs in the Linux kernel.
-
Packet Filtering: The author explains how to write an eBPF filter to parse incoming packets, specifically looking to identify and block requests from the
curl
command-line tool. -
TLS Fingerprinting: The technique uses TLS fingerprinting (JA4 format) to identify clients based on their TLS handshake details, which helps in distinguishing legitimate requests from bot traffic.
-
Custom Hashing: Instead of using complex cryptographic hashes, the author proposes a simpler non-cryptographic hash function to efficiently store and compare cipher suites used in TLS connections.
-
Implementation: The filter can block specific requests by checking against a configuration of known
curl
fingerprints stored in an eBPF map. -
Conclusion: The solution effectively blocks unwanted bot traffic while being fast and efficient, outperforming traditional user-space methods.
The post emphasizes the fun of exploring low-level network programming and the effectiveness of this approach in bot detection.
72.Privacy Badger is a free browser extension made by EFF to stop spying(Privacy Badger is a free browser extension made by EFF to stop spying)
Summary of Privacy Badger
Privacy Badger is a free browser extension created by the Electronic Frontier Foundation (EFF) to protect users from online tracking by advertisers and third-party trackers. Here's a simplified overview of its key features:
-
Functionality: Privacy Badger automatically blocks trackers that violate user consent by observing their behavior across websites. If a tracker is found to be following you, Privacy Badger will prevent it from loading any more content in your browser.
-
Difference from Other Blockers: Unlike traditional ad blockers, Privacy Badger does not block all ads. It focuses on stopping trackers that invade privacy. It uses an algorithm to identify what constitutes tracking, rather than relying on a fixed list of blocked sites.
-
Privacy Signals: The extension sends signals like Do Not Track (DNT) and Global Privacy Control (GPC) to inform websites of your privacy preferences. If these are ignored, Privacy Badger will learn to block those trackers.
-
User-Friendly: Privacy Badger works without requiring user configuration, making it easy for anyone to use. It adapts over time based on what it learns about trackers.
-
Compatibility: It works with major browsers like Chrome, Firefox, Edge, and Opera, but not all browsers, including Safari on iOS.
-
Support and Development: Users can support the development of Privacy Badger through donations. EFF relies on member support to continue its work on privacy tools and advocacy.
Overall, Privacy Badger aims to create a safer online environment by minimizing non-consensual tracking while still allowing the web to function properly.
73.Going down the rabbit hole of Postgres 18 features(Going down the rabbit hole of Postgres 18 features)
No summary available.
74.Companies Are Lying About AI Layoffs(Companies Are Lying About AI Layoffs)
No summary available.
75.WebRTC LAN Baby Monitor for iOS and iPadOS(WebRTC LAN Baby Monitor for iOS and iPadOS)
Hey everyone,
I created an app that turns old Apple devices into a baby monitor using WebRTC over Wi-Fi, without needing to buy extra devices or rely on servers that could compromise your privacy. I wanted to avoid the issues with products that connect to unknown servers. If you have two Apple devices, you can test it, and simulators also work. I'd appreciate any feedback!
76.Queueing to publish in AI and CS(Queueing to publish in AI and CS)
I studied the conference publication system using queueing theory and created an interactive model to explore it. I found that when papers are accepted based on a fixed percentage of submissions, increasing acceptance rates can actually lead to a similar number of accepted papers overall, even with fewer unaccepted papers. I also created a funnel simulation that shows this concept. It demonstrates that despite different acceptance rates, the number of accepted papers remains the same over time. With lower acceptance rates, more papers are simply reviewed.
77.Can LIGO Detect Daylight Savings Time?(Can LIGO Detect Daylight Savings Time?)
Yes, it can.
Catalogs from gravitational-wave interferometers have complex selection effects, making direct measurements of detection probabilities essential. Using data from the LIGO-Virgo-KAGRA Collaborations' recent observing runs, I found that the detection probability changes over time and follows a weekly pattern. There are noticeable differences in detection between weekends and weekdays, as well as between day and night at the observation sites, and even between daylight-saving and standard time. I explore possible reasons for these variations and their implications.
78.Open Printer is an open source inkjet printer with DRM-free ink(Open Printer is an open source inkjet printer with DRM-free ink)
The Xiaomi Redmi 15C 5G is a smartphone that supports 5G technology and still includes a traditional headphone jack.
79.EA Announces Agreement to be Acquired by PIF, Silver Lake, and Affinity Partners(EA Announces Agreement to be Acquired by PIF, Silver Lake, and Affinity Partners)
No summary available.
80.Vertical Solar Panels Are Out Standing(Vertical Solar Panels Are Out Standing)
No summary available.
81.90%(90%)
No summary available.
82.Government to shut down after midnight barring last minute breakthrough(Government to shut down after midnight barring last minute breakthrough)
No summary available.
83.Browsh: A fully-modern text-based browser, rendering to TTY and browsers(Browsh: A fully-modern text-based browser, rendering to TTY and browsers)
No summary available.
84.What if I don't want videos of my hobby time available to the world?(What if I don't want videos of my hobby time available to the world?)
The author enjoys their Airsoft hobby, which involves playing games in the woods with others. However, they are concerned about the trend of players recording and uploading videos of these games to YouTube without asking for consent from all participants. While they understand that some players find this fun, the author feels uncomfortable with being filmed and published online without permission. They point out that there is no system in place, like a lanyard for those who don’t want to be included, and they have not yet asked others to exclude them from videos. The author emphasizes that being in public should not mean giving up the right to privacy, especially in a private hobby setting. They are not trying to change anyone's behavior or policies but are sharing their thoughts on the issue. They also mention some personal preferences regarding Airsoft gear and express gratitude for the discussions they've had about these topics.
85.Senators try to halt shuttle move, saying "little evidence" of public demand(Senators try to halt shuttle move, saying "little evidence" of public demand)
No summary available.
86.Ahab's Arithmetic: The Mathematics of Moby-Dick (2021)(Ahab's Arithmetic: The Mathematics of Moby-Dick (2021))
No summary available.
87.Simple WhatsApp API (Open Source)(Simple WhatsApp API (Open Source))
The existing APIs had many problems, especially with handling attachments. To fix this, a new WhatsApp API was created. Right now, it only allows sending messages.
88.Play snake in the URL address bar(Play snake in the URL address bar)
No summary available.
89.Using Cesium-137 testing to find counterfeit wine(Using Cesium-137 testing to find counterfeit wine)
Summary of "Atomic Wine: The Hidden World of Counterfeit Wine"
In a laboratory in the Alps, physicist Philippe Hubert tests wine bottles for radioactivity to check if they are counterfeit. Wine authentication has become increasingly important, with experts like Maureen Downey using various tools to detect fakes. Counterfeit wines have surged recently, with Downey reporting $5 million worth of fakes in just one year.
A notable case involves bottles attributed to Thomas Jefferson, which were sold at high prices but lacked solid proof of their authenticity. Jefferson, a well-known wine connoisseur, never ordered the wines linked to these bottles. Collector Bill Koch, who bought some of these Jefferson bottles, later suspected fraud and enlisted former FBI agent Jim Elroy to investigate.
Elroy discovered that Hardy Rodenstock, a known wine figure, was behind the counterfeit bottles. Using a specialized gamma ray test for Cesium 137, which only appears in wine post-atomic bomb testing, they found no evidence of this isotope, suggesting the wine was not from the 18th century.
Counterfeiting wine is not new; historical figures like Louis XIV enforced wine authenticity measures. Rudy Kurniawan, a modern fraudster, created fake wines using specific recipes in his home lab. Investigators found that tools used to engrave the Jefferson bottles were too advanced for Jefferson's time, further undermining their authenticity.
In summary, the world of counterfeit wine is complex and has deep historical roots, with modern techniques now being used to uncover fraud.
90.Google to merge Android and ChromeOS in 2026(Google to merge Android and ChromeOS in 2026)
Google will merge its Android and ChromeOS operating systems by 2026, with Android being the main system. This decision was announced at Qualcomm's Summit event by Sameer Samat, Google's head of the Android ecosystem. The goal is to enhance AI capabilities on laptops by using Android's technology.
Samat emphasized that this change will allow for better integration of AI services and a smoother experience across devices. He mentioned that Android has already been successful on tablets, suggesting it can also thrive on laptops. The collaboration with Qualcomm will help adapt smartphone technology for use in laptops. Ultimately, the merge is largely driven by the growing emphasis on AI in technology.
91.YouTube caves to Trump with $24.5M settlement(YouTube caves to Trump with $24.5M settlement)
YouTube has settled a lawsuit with former President Donald Trump for $24.5 million. This lawsuit stemmed from Trump's suspension from the platform after the January 6th Capitol insurrection. YouTube's settlement includes $22 million going to the Trust for the National Mall and $2.5 million for other plaintiffs. This amount is less than the $25 million Meta paid in January, as YouTube aimed to keep its settlement smaller than Meta's. Trump was suspended from uploading videos due to concerns about potential violence but was allowed back in March 2023.
92.Trump Makes It Clear They Will Turn TikTok into a Right Wing Propaganda Machine(Trump Makes It Clear They Will Turn TikTok into a Right Wing Propaganda Machine)
No summary available.
93.The Long Trip from Silica to Smartphone(The Long Trip from Silica to Smartphone)
The article "The Long Strange Trip from Silica to Smartphone" outlines the complex journey of smartphone processors from raw materials to finished products, highlighting the global nature of the electronics industry. Here are the key points:
-
Quartz Mining: The process starts in a quartz mine in Spain, where large pieces of quartz are extracted and sorted.
-
Silicon Metal Production: The quartz is transported to a factory in Spain, mixed with wood chips, and heated to high temperatures to create silicon metal.
-
Purified Polysilicon: The silicon metal is then sent to Germany, where it undergoes chemical processes to achieve a purity level suitable for microprocessors.
-
Silicon Wafers: The ultrapure silicon is transformed into single crystal wafers in Texas using a specialized method that creates large, pure silicon ingots.
-
Processed Wafers: These wafers are sent to Taiwan, where advanced factories produce the actual processors through intricate and expensive processes.
-
Packaged Chips: Once the processors are made, they are packaged in Malaysia to protect them and connect them to circuit boards.
-
Smartphone Assembly: Finally, the packaged chips are sent to India, where they are assembled into smartphones, like the iPhone, at a large production facility.
Overall, this journey illustrates the immense scale and sophistication of the electronics supply chain, with significant production occurring across multiple countries.
94.In the economy of user effort, be a bargain, not a scam(In the economy of user effort, be a bargain, not a scam)
Google Calendar is not typically seen as a creative tool, but it helps people organize events. It serves both simple and complex scheduling needs.
- Simple Use: Users can easily create a one-hour event with just one click.
- Complex Use: It also supports more complicated scenarios like recurring events and managing multiple calendars, although these require more user effort.
The design of Google Calendar reflects real-life situations, showing that complex needs often arise from everyday events, not just advanced users.
95.High Voltage Coin Cell(High Voltage Coin Cell)
No summary available.
96.F-Droid and Google’s developer registration decree(F-Droid and Google’s developer registration decree)
Summary of F-Droid and Google's Developer Registration Decree
F-Droid is a platform that provides safe, free, and open-source apps for Android users, contrasting sharply with commercial app stores like Google Play, which can host spyware and scams. F-Droid ensures that apps are thoroughly reviewed for security and transparency, allowing users to trust that the apps they install are safe and have not been tampered with.
Recently, Google announced a requirement for all Android developers to register centrally with them, including paying a fee and submitting personal identification. This move threatens F-Droid and similar platforms by potentially restricting the distribution of open-source apps, leaving users without access to trusted software.
While Google claims that this registration is necessary for security, the reality is that Google Play has hosted malware before. F-Droid argues that their open-source model is inherently safer due to its transparency and the ability for anyone to audit the code.
The push for developer registration is seen as a way for Google to consolidate power and control over app distribution, limiting competition and user freedom. F-Droid advocates for the right to run any software on personal devices, akin to the principles of free speech, and calls for regulators to protect the rights of developers and users against oppressive registration requirements.
To support digital freedom, users and developers are encouraged to speak out against these changes, contact their representatives, and advocate for the preservation of open app distribution.
97.GLM-4.6: Advanced Agentic, Reasoning and Coding Capabilies(GLM-4.6: Advanced Agentic, Reasoning and Coding Capabilies)
No summary available.
98.Fluid Glass(Fluid Glass)
No summary available.
99.Fernflower Java Decompiler(Fernflower Java Decompiler)
Fernflower Summary
Fernflower is a Java decompiler that converts Java bytecode back into readable Java source code. It is the first effective analytical decompiler for Java and is still being improved.
Key Points:
- Name: The correct name is "Fernflower," not "FernFlower."
- Development: Originally created by Stiver, it includes updates from ForgeFlower, with special thanks to its maintainers and Andrew McRae for his long-term support.
- License: It is licensed under the Apache License Version 2.0.
Usage:
- In IntelliJ IDEA: Fernflower is integrated as a plugin. You can open .class files to see the decompiled code.
- Command Line: You can run Fernflower using the command:
It supports .class, .zip, and .jar files, allowing complex analysis of class relationships.java -jar fernflower.jar [options] [source files] [destination]
Options: Users can customize various command-line options to control the decompilation process, including whether to hide certain methods, decompile inner classes, or rename ambiguous identifiers.
Renaming Identifiers: Fernflower can rename confusing class and method names to ensure uniqueness, which helps when dealing with obfuscated code. Users can customize the renaming process by implementing their own renaming strategy.
Development: To build Fernflower, run the command:
./gradlew :installDist
This will create a startup script for execution.
For any bug reports or suggestions, users can contact the developers via the issue tracker.
100.What is “good taste” in software engineering?(What is “good taste” in software engineering?)
Summary of "Good Taste in Software Engineering"
Good taste in software engineering is about making the right design choices based on a set of engineering values, which can differ from technical skills. You can be skilled but lack good taste, or vice versa. Good taste helps you recognize quality in code and design, even if you can't create it yourself yet.
Key points include:
-
Indicators of Taste: Your preferences for certain coding styles and design decisions reflect your taste. This includes what code looks good or ugly to you, and which software problems you find concerning.
-
Taste vs. Skill: Taste is subjective, shaped by personal values and experiences. Different engineers can have valid opinions based on their own priorities, such as readability versus performance.
-
Trade-offs in Engineering: Software decisions often involve trade-offs between values like speed, correctness, and readability. Mature engineers understand these complexities and consider both sides rather than insisting on one approach.
-
Defining Bad and Good Taste:
- Bad Taste: Occurs when an engineer’s values don’t align with project needs, leading to inflexible decisions that may not fit the context.
- Good Taste: Is the ability to choose the right engineering values for specific problems, often reflected in successful project outcomes.
-
Developing Good Taste: To cultivate good taste, work on diverse projects, observe what works well, and stay flexible in your opinions. Avoid rigid beliefs about the "best" way to code.
In summary, good taste in software engineering is about understanding the trade-offs of decisions and aligning your values with the specific needs of a project.