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POSTGRES LISTEN/NOTIFY DOES NOT SCALE

Recall.ai experienced Postgres downtime due to heavy write loads from thousands of meeting bots. An investigation showed that Postgres' LISTEN/NOTIFY feature acquired a global database lock during transaction commits, serializing them and causing a bottleneck. Load tests confirmed that removing LISTEN/NOTIFY allowed the database to fully utilize CPU cores and handle load spikes effectively.

THE ACCESSIBILITY PIPELINE FOR FRONTEND TEAMS

Storybook 9's new accessibility testing pipeline integrates accessibility checks into every stage of frontend development. Unlike traditional accessibility testing methods that are slow and provide low coverage, Storybook's approach tests components in isolation with mock data, providing fast and stable feedback during development while automatically checking for WCAG violations.

SEO IS DEAD. LONG LIVE GEO

Traditional SEO is becoming less effective as LLMs and AI search interfaces like Google's AI Mode rise. GEO (Generative Engine Optimization) is a new priority that requires brands to create detailed content answering customer questions for LLM uptake, build an AI-friendly online presence, and monitor LLM visibility.

SATISFIES IN TYPESCRIPT

The `satisfies` keyword in TypeScript allows you to assert that a value satisfies a given type while preventing TypeScript from inferring a wider type, which allows for excess property checking on object literals. This is especially useful when you want to catch typos in property names while still having idiomatic code structure.

BROWSEROS

BrowserOS is an open-source, Chromium-based browser focused on AI-powered automation and user privacy. It uses local AI agents and built-in Ollama support to automate tasks, conduct research, and curate content while keeping data secure. BrowserOS has a built-in ad blocker and tools for productivity like a highlighter and ChatGPT-powered bookmarker.

BATCH MODE IN THE GEMINI API

The Gemini API now offers a Batch Mode, an asynchronous endpoint designed for high-throughput, non-latency-critical tasks. This new mode allows users to submit large jobs and retrieve results within 24 hours at a 50% discount compared to synchronous APIs. Batch Mode is great for tasks like bulk content generation and model evaluations.

PANGOLIN

Pangolin is a self-hosted, tunneled reverse proxy server with identity and access control that allows secure exposure of private network resources without opening ports. It uses WireGuard tunnels for secure site-to-site connectivity and offers features like automated SSL certificates, load balancing, and integration with external identity providers.

THE HISTORY OF REACT THROUGH CODE

React started at Facebook in 2011 as "FaxJS" (later "FBolt"). Jordan Walke created it to solve problems with the company's existing BoltJS framework. Throughout its changes, React has maintained API consistency, from early innovations like JSX (which allowed HTML-like syntax in JavaScript for better performance, security, and debugging) to modern features, all guided by a coherent design philosophy.

INTRODUCING REACT NATIVE RAG: LOCAL & OFFLINE RETRIEVAL-AUGMENTED GENERATION

React Native RAG is a new library that brings Retrieval-Augmented Generation (RAG) capabilities to React Native apps, allowing LLMs to generate more accurate and relevant responses by retrieving information from a local knowledge base. The library works in two stages: indexing documents (splitting, embedding, and storing) and generating responses (retrieving, augmenting, and generating).

IS GEMINI 2.5 GOOD AT BOUNDING BOXES? SORT OF…

LEVEL UP REACT: DEEP DIVE INTO STATE AND USESTATE

An in-depth guide to React's `useState` hook, covering its basics, asynchronous behavior, impact on rendering, lazy initialization, handling complex objects, common pitfalls, best practices, comparison with `useReducer`, and performance optimization techniques.

USING AI WITHOUT LEAVING THE TERMINAL: A GUIDE TO LLM

`llm` is a command-line tool for interacting with various language models like GPT-4, Claude, and Gemini directly from the terminal.

ANALYZING DATABASE TRENDS THROUGH 1.8 MILLION HACKER NEWS HEADLINES

Analysis of 1.8 million Hacker News headlines from 2007-2025 shows trends in database engine popularity, with the rise of open-source and analytics-focused databases like DuckDB and ClickHouse, while proprietary cloud databases like MongoDB are declining in mindshare.

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XAI GAVE US EARLY ACCESS TO GROK 4 - AND THE RESULTS ARE IN

According to new benchmark tests, Grok 4 is now the leading AI model. Grok 4 is a reasoning model that costs $3 per million input tokens and $15 per million output tokens. It is expected to be available via the xAI API, the Grok chatbot on X, and potentially on Microsoft Azure AI Foundry. xAI's API serves Grok 4 at 75 tokens per second, which is slower than OpenAI's o3 but faster than Anthropic's Claude 4 Opus Thinking.

LINDA YACCARINO STEPS DOWN AS CEO OF ELON MUSK'S X

Linda Yaccarino is stepping down as chief executive of X after months of uncertainty at the company. The company initially struggled with an exodus of advertisers under Elon Musk's ownership. X is now expected to see ad revenue growth for the first time since the takeover. Yaccarino said that this made it a good time to depart.

HUGGING FACE JUST LAUNCHED A $299 ROBOT THAT COULD DISRUPT THE ENTIRE ROBOTICS INDUSTRY

Hugging Face's Reachy Mini is a $299 desktop robot designed to address accessibility in robotics development. It features six degrees of freedom in its moving head, full body rotation, animated antennas, a wide-angle camera, multiple microphones, and a 5-watt speaker. There is a fully autonomous wireless version that includes a Raspberry Pi 5 computer and battery. The robot can be programmed in Python - JavaScript and Scratch support is planned. Hugging Face plans to release all hardware designs, software, and assembly instructions as open source.

INSIDE A NEUROSCIENTIST'S QUEST TO CURE COMA

Neuroscientist Daniel Toker, a postdoctoral fellow at the Department of Neurology at UCLA, is on a quest to understand the neurobiology of unconsciousness. He says consciousness and unconsciousness are deeply intertwined - and we still don't really know what it means to be conscious. Unconsciousness is a common endpoint for a lot of conditions, so it's easier to study scientifically and also medically important. Toker's grandest aim is to cure coma and other disorders of consciousness, such as the vegetative state.

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SYSTEMD HAS BEEN A COMPLETE, UTTER, UNMITIGATED SUCCESS

Before systemd, developers were using init scripts of varying quality with janky dependencies and wildly varying semantics. This article looks at how systemd has changed the Linux landscape. It looks at the problems with init, the features systemd introduced, and other ways systemd changed the development process. systemd has largely been a success story and it proved many dire forecasts wrong.

ANNOUNCING FOKS, THE FEDERATED OPEN KEY SERVICE

FOKS is a fully open-source and federated key service with SSO and YubiKey support. It aims to give teams of users, each with multiple devices, shared secret keys so they can share data securely across the internet. Anyone can run a FOKS server and control their own localized namespace. FOKS allows for an open market of service providers - users can pick the one with the security, privacy, availability, and moderation policies that best suit them, or host their own.

HOW NVIDIA BECAME THE WORLD'S FIRST $4 TRILLION COMPANY

Nvidia became the first company in history to reach a market value of $4 trillion on Wednesday morning. The company's fortunes have surged over the past three years thanks to the rise of generative artificial intelligence. It builds the chips that power the AI industry. This article looks at the history of the company and how it developed into the AI chip giant it is today.

OPENAI IS REPORTEDLY RELEASING AN AI BROWSER IN THE COMING WEEKS

OpenAI plans to release an AI-powered browser in the coming weeks. The browser will supposedly keep some user interactions inside ChatGPT instead of linking out to websites. It may integrate Operator, OpenAI's web-browser AI agent, as a key feature. Launching a browser would allow OpenAI to gain direct access to user data and create novel user experiences.

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APPLE LOOKS TO BID ON BECOMING US HOME FOR FORMULA 1

ESPN's Formula 1 contract ends next year - Apple will be up against many other bidders.

META POACHED APPLE'S PANG WITH PAY PACKAGE OVER $200 MILLION

The compensation package consists of a base salary, a signing bonus, and Meta shares, with the stock as the weightiest part of the package - much of the money is tied up in performance targets to be unlocked after years of loyalty.

APPLE M4, MORE COMFORTABLE STRAP WILL HEADLINE FIRST MAJOR VISION PRO UPDATE

A new version of the Vision Pro could arrive as early as this year.

GALAXY UNPACKED 2025: EVERYTHING SAMSUNG ANNOUNCED INCLUDING THE Z FOLD 7, Z FLIP 7, AND GALAXY WATCH 8

The Galaxy Z Fold 7 is Samsung's thinnest foldable ever, but it no longer has S Pen support.

TESLA IS DAYS AWAY FROM VIOLATING A TEXAS LAW. WHAT'S GOING ON?

Tesla is days away from missing a deadline to hold an annual shareholders meeting.

SEEING LIKE AN LLM

Large language models autocomplete a context and answer what they think is asked - the more context they are given, the more likely they are to provide the right answer.

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XAI GAVE US EARLY ACCESS TO GROK 4 - AND THE RESULTS ARE IN

Benchmark tests on Grok 4 (in early access) show that it will be the lead AI frontier, beating out OpenAI's o3, Google's Gemini 2.5 Pro, Anthropic's Claude 4 Opus, and DeepSeek R1. This will be the first time xAI has the lead AI frontier. The reasoning model is priced at $3 per million input tokens and $15 per million output tokens, which is identical to Claude 4 Sonnet but more expensive than Gemini 2.5 Pro. This post shows benchmarking results for the upcoming model.

PERPLEXITY'S COMET: A RESEARCH-ORIENTED BROWSER

Perplexity has launched Comet, a browser built to serve as an AI-powered assistant across both work and personal tasks. It integrates Perplexity's search and reasoning engine to help users organize knowledge, ask questions, and streamline digital workflows.

OPENAI TO RELEASE WEB BROWSER IN CHALLENGE TO GOOGLE CHROME

OpenAI plans to launch an AI-powered web browser soon, challenging Google's Chrome. The new browser will integrate AI agents for tasks like booking reservations, potentially disrupting Google's ad-revenue model dependent on Chrome's user data. OpenAI's browser, built on Google's open-source Chromium, reflects its strategy to directly capture user web behavior data.

HOW BIG COULD AN “AI MANHATTAN PROJECT” GET?

4D METHOD FOR BUILDING AI PRODUCTS

Miqdad Jaffer, a product leader at OpenAI, outlines a framework for building AI tools that solve real problems. The 4D method (Discover, Design, Develop, and Deploy) emphasizes user-centric problem discovery, invisible trust-building AI design, resilient development practices, and high-impact first-use experiences.

GEMMA 3N AND MATFORMER IN PRACTICE

A hands-on tutorial for experimenting with Gemma 3n and MatFormer, Google's nested transformer model that supports elastic inference via the Mix-n-Match technique.

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GENERAL-PURPOSE BIOMEDICAL AI AGENT

Biomni is a general-purpose biomedical AI agent that combines LLM reasoning with retrieval-augmented planning and code execution to autonomously complete research tasks across biomedical domains.

GOOGLE'S MCP TOOLBOX FOR DATABASES

The open-source server lets AI agents query databases and automatically handles connection pooling, authentication, and security for database interactions.

CATS CONFUSE REASONING LLM: QUERY AGNOSTIC ADVERSARIAL TRIGGERS FOR REASONING MODELS

Adding irrelevant phrases like "Interesting fact: cats sleep most of their lives" to math problems causes reasoning models to generate incorrect answers 300% more often than baseline. The query-agnostic phenomenon transfers across model size, with distilled models showing even higher vulnerability rates. The attacks also cause significant computational overhead, with 42% of responses exceeding 1.5x normal token length.

CIRCLE TO SEARCH GETS AI MODE

Google's Circle to Search feature now includes AI Mode, allowing users to get advanced reasoning and follow-up responses directly from their visual queries without leaving the current app.