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Google's Genie is more impressive than GPT5
It was a busy week in the AI world.
New
The latest blog posts to take off on Hacker News. 6,220 posts.
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Getting good results from Claude Code
An updated version of my user-level CLAUDE.md is featured in this post from December 2, 2025. I've been experimenting with LLM programming agents over the past few months. Claude Code has become my favorite. It is not without issues, but it's allowed me to write ~12 programs/projects in
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How we replaced Elasticsearch and MongoDB with Rust and RocksDB
Radar offers geocoding, place search, and fraud detection APIs, powered by HorizonDB, a Rust-based engine delivering 20k QPS and sub-millisecond latency.
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Food, housing, & health care costs are a source of major stress for many people
About half the public identify the cost of groceries as a major source of financial stress. Nearly 1 in 5 of them have used so-called Buy Now Play Later services to buy their groceries.
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How attention sinks keep language models stable
We discovered why language models catastrophically fail on long conversations: when old tokens are removed to save memory, models produce complete gibberish. We found models dump massive attention onto the first few tokens as "attention sinks"—places to park unused attention since softmax requires weights to sum to 1…
2766
Linear sent me down a local-first rabbit hole
A deep dive into local-first architecture, triggered by wondering why Linear feels so fast. Looking at the technical implementation, exploring tools like Jazz and Electric SQL, and explaining why my next app might not need API endpoints.
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Cursed Knowledge
Cursed knowledge we have learned as a result of building Immich that we wish we never knew.
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OpenAI's new open-source model is basically Phi-5
OpenAI just released its first ever open-source large language models, called gpt-oss-120b and gpt-oss-20b. You can talk to them here. Are they good models…
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Exit Tax: Leave Germany before your business gets big
Learn what triggers Germany’s exit tax for business owners, how it’s calculated, and why growing a profitable company can make leaving Germany costly.
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GPT-5: Key characteristics, pricing and system card
I’ve had preview access to the new GPT-5 model family for the past two weeks (see related video and my disclosures) and have been using GPT-5 as my daily-driver. It’s …
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GPT-5 for Developers
Introducing GPT-5 in our API platform—offering high reasoning performance, new controls for devs, and best-in-class results on real coding tasks.
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Introducing GPT-5
We are introducing GPT‑5, our best AI system yet. GPT‑5 is a significant leap in intelligence over all our previous models, featuring state-of-the-art performance across coding, math, writing, health, visual perception, and more.
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Building Bluesky comments for my blog
I hate disqus too much.
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AWS Restored My Account: The Human Who Made the Difference
The untold story of how one AWS employee turned a 20-day nightmare into a lesson in corporate accountability. Sometimes all it takes is one person who actually gives a damn.
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How to sell if your user is not the buyer
Example: Dev = user; CTO = buyer
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Creating the Longest Possible Ski Jump in “The Games: Winter Challenge”
An investigation into The Games; Winter Challenge
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Lithium compound can reverse Alzheimer’s in mice: study
Study: Lithium loss ignites Alzheimer’s, but lithium compound can reverse disease in mice
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Let's stop pretending that managers and executives care about productivity
Writing at the end of the world, from Hveragerði, Iceland
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Infinite Pixels
In which I push browser engines to their finite limits using infinite values.
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An LLM does not need to understand MCP
Model Context Protocol (MCP) has became the standard for tool calling when building agents, but contrary to popular belief your LLM does not need to understand MCP.
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AI Ethics is being narrowed on purpose, like privacy was
A few days ago, OpenAI released an open-source language model for the first time in a very long time. It had been promised for a while, but the deadline kept being pushed for “safety” concerns.
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The Whispering Earring
Cleaner, easier-to-reference repo of Scott Alexander’s The Whispering Earring (that’s the Schelling title, real title below). Original from livejournal is ba...
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How AI conquered the US economy: A visual FAQ
Artificial intelligence is the biggest tech construction project in a century. Here's what that looks like.
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Gemini CLI GitHub Actions
Today, we’re introducing Gemini CLI GitHub Actions. It’s a no-cost, powerful AI coding teammate for your repository. It acts both as an autonomous agent for critical rou…
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Zero-day flaws in authentication, identity, authorization in HashiCorp Vault
Check Point's AI Security Solutions deliver AI-driven threat prevention and unified security management for advanced protection across enterprise networks.
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Running GPT-OSS-120B at 500 tokens per second on Nvidia GPUs
Train, serve, and scale open-source and custom AI models on the fastest, most reliable inference platform.
2788
Mac history echoes in current Mac operating systems
Ars Technica mentioned that in macOS Tahoe the venerable old hard disk icons will be replaced with new, more generic, relatively less inte...
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Emailing a one-time code is worse than passwords
where my words occasionally escape /dev/null
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Apple announces American Manufacturing Program
Apple announced a new $100 billion commitment to America, a significant acceleration of its U.S. commitment that now totals $600 billion over four years.