Claude Opus 4.6

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Claude Opus 4.6 is a significant improvement over its predecessor, offering better coding skills, reliability, and safety. It excels in everyday work tasks, including financial analysis, research, and document creation.

Things Unix can do atomically (2010)

UNIX-like/POSIX-compliant operating systems provide atomic operations for thread-safe and multi-process-safe programs without mutexes or locks. These operations include mv -T, link, symlink, open, mkdir, and fcntl, which can be used for file and directory locking, creating new files and directories, and synchronizing access to files.

Systems Thinking

There are two main software development approaches: gradual evolution of complexity over time and big up-front design with a detailed specification.

Plasma Effect

The plasma effect is a procedural graphics technique creating organic patterns through sinusoidal wave interference and color mapping. It combines sine and cosine functions with different frequencies and phases to produce a flowing, pulsing appearance.

GPT-5.3-Codex

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GPT-5.3-Codex is a new model that advances coding performance, reasoning, and professional knowledge capabilities, enabling long-running tasks and real-time interaction. It sets a new industry high on coding benchmarks and demonstrates strong performance on real-world tasks, making it a general-purpose agent for technical work.

Invention of DNA "Page Numbers" Opens Up Possibilities for the Bioeconomy

https://caltech-prod.resources.caltech.edu/main/images/Wang_Kaihang-Synthesizing-DN.2e16d0ba.fill-1600x810-c100.jpg
The power of artificial intelligence (AI) and advanced computing has made it possible to design genetic sequences encoding for diverse biological applications, such as proteins that form the building blocks of materials stronger than steel, or personalized cancer treatments. But the act of constructing DNA sequences to realize those designs has been a significant bottleneck. Due to ...

My AI Adoption Journey

The user shares their personal journey of adopting AI tooling, starting with a period of inefficiency, then adequacy, and finally workflow and life-altering discovery, highlighting the importance of using agents with external behavior capabilities. They outline their approach to harnessing AI, including breaking down tasks, verifying agent work, and "harness engineering" to prevent mistakes, ...

We tasked Opus 4.6 using agent teams to build a C Compiler

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The user experimented with a new approach called "agent teams" where multiple Claude instances work in parallel on a shared codebase without human intervention, successfully producing a 100,000-line Rust-based C compiler that can build Linux 6.9 on x86, ARM, and RISC-V. The user learned how to design harnesses for long-running autonomous agent teams, including writing tests, structuring work, ...

A new bill in New York would require disclaimers on AI-generated news content

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A new bill in the New York state legislature would require news organizations to label AI-generated material and mandate that humans review any such content before publication. On Monday, Senator Patricia Fahy (D-Albany) and Assemblymember Nily Rozic (D-NYC) introduced the bill, called The New York Fundamental Artificial Intelligence Requirements in News Act — The NY FAIR News Act for short. ...

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

https://raw.githubusercontent.com/artifact-keeper/.github/main/profile/feature-graphic.png
Artifact Keeper is an open-source artifact registry that can be self-hosted in minutes, offering a drop-in replacement for JFrog Artifactory and Sonatype Nexus with zero feature gates. It supports 45+ package formats and has features like security scanning, SSO, replication, and a WASM plugin system.

Recreating Epstein PDFs from raw encoded attachments

https://neosmart.net/blog/wp-content/uploads/2026/02/EFTA00400459-Sample.webp
The DoJ's latest Epstein archive release has several issues, including censored names, corrupted files, and poor OCR results due to the use of Courier New font and low-quality JPEG scans.

Stay Away from My Trash

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The author of tldraw is considering shutting down external contributions due to an influx of low-quality AI-generated pull requests. They argue that code is now easy to write with AI tools, making external contributions less valuable.

Animated Knots

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A disclaimer is provided for rope-related activities, warning of potential hazards and risks to life. It disclaims responsibility for incidents arising from the use of this material.

Unlocking high-performance PostgreSQL with key memory optimizations

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To optimize PostgreSQL performance, understand settings like shared_buffers and work_mem, which control memory usage and disk interaction, and adjust them based on real metrics and system statistics. Properly sizing shared_buffers (20-25% of total RAM) and work_mem (3-4MB per GB of RAM) can prevent memory pressure, disk spills, and out-of-memory errors.

I reversed Tower of Fantasy's anti-cheat driver: a BYOVD toolkit never loaded

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The Tower of Fantasy game shipped with a kernel driver that has BYOVD capabilities and weak authentication. The driver can be exploited to kill and shield processes from antivirus and EDR agents.

The RCE that AMD won't fix

User found a Remote Code Execution vulnerability in AMD's AutoUpdate software due to lack of certificate validation and HTTP download URLs. AMD considered it "out of scope" and did not consider it a vulnerability.

The time I didn't meet Jeffrey Epstein

https://s0.wp.com/_si/?t=eyJpbWciOiJodHRwczpcL1wvc2NvdHRhYXJvbnNvbi5ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIxXC8xMFwvY3JvcHBlZC1KYWNrZXQuZ2lmIiwidHh0IjoiU2h0ZXRsLU9wdGltaXplZCIsInRlbXBsYXRlIjoiZWRnZSIsImZvbnQiOiIiLCJibG9nX2lkIjoxMjk1MjA1ODB9.siOtN7gHw4tefA_rZickBw4GfI6tPxGgOQ1AXr2ZoOQMQ
Scott Aaronson discovered his name in the Epstein Files, showing Epstein's attempts to fund a research project with him in 2010, which he largely blew off after his mom's advice to be cautious. Aaronson reflects on how he was not alone in being approached by Epstein, but notes that many scientists who interacted with him were either charmed by him or prioritized his funding over their reservations.

Waiting for Postgres 19: Better planner hints with path generation strategies [video]

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MenuetOS is a 64bit assembly OS with pre-emptive multitasking, GUI, and multiprocessor support. It's written in 64bit assembly for speed and compactness, with a responsive GUI and support for various applications.

The Color of Safety

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A few weeks ago, I got nerdsniped by a Beth Mathews essay, Why So Many Control Rooms Were Seafoam Green. It introduced me to the story of Faber Birren, responsible for the characteristic color schemes we associate with mid-century industrial interiors. More generally, Birren pioneered the use of color as a design and control variable shaping everything from consumer buying behaviors to ...

Claude Opus 4.6 extra usage promo

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Pro and Max users who started their subscription before February 4, 2026, at 11:59 PM PT, get a $50 credit for extra usage with Claude Opus 4.6. The credit can be claimed from February 5 to 16, 2026, and expires 60 days after claiming.

GitHub Actions is slowly killing engineering teams

The author, a CI expert, criticizes GitHub Actions for its poor usability, slow performance, and complex configuration. They recommend Buildkite as a better alternative.

Sealos – AI Native Cloud Cloud Operating System

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Sealos['siːləs] is an AI-native Cloud Operating System built on Kubernetes that unifies the entire application lifecycle, from development in cloud IDEs to production deployment and management. It is perfect for building and scaling modern AI applications, SaaS platforms, managed databases (MySQL, PostgreSQL, Redis, MongoDB) and complex microservice architectures. Integrated Cloud IDEs: ...

LinkedIn checks for 2953 browser extensions

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# Fetch all extensions node fetch_extension_names.js # Fetch a subset (useful if rate limited) node fetch_extension_names.js --offset 0 --limit 500 node fetch_extension_names.js -o 500 -l 500 # Show help node fetch_extension_names.js --help

Hypernetworks: Neural Networks for Hierarchical Data

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Standard neural networks fail to handle hierarchical data where observations are grouped into distinct datasets with hidden parameters, leading to flawed conclusions and overfitting. Hypernetworks offer a solution by learning to generate dataset-specific parameters based on a dataset embedding, enabling flexible and data-efficient adaptation while pooling knowledge across datasets.

Review of 1984 by Isaac Asimov (1980)

The author reflects on George Orwell's novel 1984, which was published in 1949 and depicted a dystopian future where the government exercises total control over citizens. The author argues that Orwell's vision of a totalitarian society was not as prescient as people think, and that many of the technological and social aspects of the novel are outdated and inaccurate.

How to carry more than your own bodyweight (2025)

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Vietnamese farm workers use long springy bamboo poles to reduce the effort required to carry heavy loads by 18%, and experts recommend building muscle through consistent strength training to increase load-carrying abilities. Incorporating strength training into exercise routines can improve health, mobility, and mental health, and various techniques such as using supports and spring-loaded ...

Orchestrate teams of Claude Code sessions

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Agent teams are experimental and let you coordinate multiple Claude Code instances working together, but have known limitations and use significantly more tokens than a single session.

What if writing tests was a joyful experience? (2023)

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The author discusses "expect tests" that make test-writing feel like exploratory programming, with the computer filling in expected results. This style of testing is convenient and encourages implicit assertions, making it easier to catch unexpected issues.

Company as Code

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The author proposes creating a "Company as Code" system to represent organisational structure, policy, and operations programmatically, making it easier to manage compliance, track changes, and automate processes. This system would use a declarative Domain Specific Language (DSL) to define entities and relationships, connected to real-world data through a storage strategy and integration framework.