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A giant cell tower is going to space this weekend
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The Verge · Technology

A giant cell tower is going to space this weekend

This weekend's scheduled Blue Origin rocket launch is rather momentous. Success would signal an end to SpaceX's monopoly on reusable orbital launch vehicles, and set up a three-way race to make that "No Service" indicator on your phone disappear forever. On Sunday morning, Jeff Bezos' massive New Gl...

Thomas Ricker
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Managing Multiple APIs and Databases in a Single Frontend Using Redux
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DEV Community · Technology

Managing Multiple APIs and Databases in a Single Frontend Using Redux

Explore how to manage multiple backends, databases, and API calls within a single frontend application using Redux. This article breaks down practical patterns for handling asynchronous data flows, maintaining state consistency, and synchronizing data across diverse services reflecting the architect...

Sk Niyaz Noor
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How I Built a Profitable FreqAI Plugin Using Institutional ML Techniques
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DEV Community · Technology

How I Built a Profitable FreqAI Plugin Using Institutional ML Techniques

The Problem with Default FreqAI Standard FreqAI trains a regressor on raw future returns. You predict "price goes up 0.5% in the next 4 hours" and threshold it into buy/sell signals. This approach has three fatal flaws: 1. Labels don't match real trades. A fixed-horizon return of +0.3%...

Stefano viana
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I Asked Claude to Analyze My Portfolio. Here’s What Happened.
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DEV Community · Technology

I Asked Claude to Analyze My Portfolio. Here’s What Happened.

A Bloomberg Terminal costs $24,000 a year. For that price, you get real-time market data, financial statements, earnings history, analyst estimates, and a research interface that institutional traders have used for decades. Most developers, indie investors, and fintech builders can't justify that....

Kevin Meneses González
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Tailwind Guides #1: What Actually Broke Migrating to v4
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DEV Community · Technology

Tailwind Guides #1: What Actually Broke Migrating to v4

I was halfway through shipping a component update when v4 dropped. My design system, 7onic, has to work with both Tailwind v3 and v4 — same components, same token source, two different output formats. So my reaction to the v4 announcement was less "exciting new features" and more "great, another out...

7onic
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Vibe Coding Threatens Journalism
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DEV Community · Technology

Vibe Coding Threatens Journalism

In February 2025, artificial intelligence researcher Andrej Karpathy, co-founder of OpenAI and former AI leader at Tesla, posted a provocative observation on social media. “There's a new kind of coding I call 'vibe coding',” he wrote, “where you fully give in to the vibes, embrace exponentials, and...

Tim Green
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Giving AI Agents a Soul: The Science Behind Persona Modeling
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DEV Community · Technology

Giving AI Agents a Soul: The Science Behind Persona Modeling

When we started building Soul Spec, the thesis was simple: AI agents need identity files, not just system prompts. Give an agent a structured persona — personality, values, communication style — and it behaves more consistently, more safely, and more usefully. Now there's academic evidence to back...

Tom Lee
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I Let an Open-Source GUI Agent Play Mahjong. Here's What Happened.
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DEV Community · Technology

I Let an Open-Source GUI Agent Play Mahjong. Here's What Happened.

The Challenge Most GUI Agent demos show the same thing: open a browser, fill out a form, click "Submit." It works, it's useful, but it doesn't really stress-test what these agents can do. We wanted to find out: what happens when you throw a GUI Agent into a completely unfamiliar, non-sta...

Mininglamp
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I Over-Engineered Karpathy's Agent Memory. Here's What Actually Works.
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DEV Community · Technology

I Over-Engineered Karpathy's Agent Memory. Here's What Actually Works.

Andrej Karpathy sketched out a beautiful idea for AI agent memory. Conversations flow into daily logs. Daily logs get compiled into a wiki. The wiki gets injected back into the next session. Your agent builds its own knowledge base over time. 53K stars on GitHub. I read the code, loved the concept,...

Serhii Kravchenko
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Building a Loader Animation with SVG + CSS Only
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DEV Community · Technology

Building a Loader Animation with SVG + CSS Only

This article is part of a series on CSS + SVG animations — the zero-JavaScript motion stack. Introduction Modern browsers have a powerful, underappreciated animation system built right in: SVG + CSS keyframes. No runtime, no bundler magic — just markup and styles that the browser ha...

Hari
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PostgreSQL Read Replicas with Docker: A Step-by-Step Guide
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DEV Community · Technology

PostgreSQL Read Replicas with Docker: A Step-by-Step Guide

As your application scales, your database becomes the first bottleneck. Every dashboard query, every report, every analytics request competes with the writes coming in from your application. The database starts spending its time arbitrating between readers and writers instead of doing either well....

Kalio Princewill
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I Replaced 47 DevOps Scripts With One AI Agent — Here’s What Happened
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DEV Community · Technology

I Replaced 47 DevOps Scripts With One AI Agent — Here’s What Happened

The Hook: I Was Wrong About Automation I thought I automated DevOps. I had 47 deployment scripts. Then I started replacing them with an AI agent — and most scripts became unnecessary. Not by following instructions. By making decisions. And the 2 AM debugging stopped. That's when I...

POTHURAJU JAYAKRISHNA YADAV
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