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DEV Community • 2026-03-21 05:53

The $274/5min Bot Attack: Protecting Next.js with Docker & Redis

The Nightmare Scenario: $274 in 5 Minutes Imagine waking up to a notification from your hosting provider. Not a "New User" alert, but a billing alert. In just five minutes, a malicious bot swarm hit your Next.js application, triggering a massive spike in serverless function execution and bandwidth. The cost? $274. This isn't a hypothetical. It recently happened to a developer on Vercel...

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5m read
/r/ReactJS - The Front Page of React • 2026-03-21 05:48

I built an open-source chat UI component library for React — chatcn

Hey everyone, I was building custom messaging and threading for my app and realized there wasn't a good drop-in solution that felt native to the shadcn/ui ecosystem. So I built chatcn and open-sourced it. What it is: Production-ready chat components you install with one shadcn CLI command. Source code drops into your project — you own it, customize everything. npx shadcn@latest add https://raw.git...

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1m read
NVIDIA’s Vera CPU in Detail: High Perf Chip Takes Aim at Broader AI Server Market
newest submissions : multi • 2026-03-21 05:45

NVIDIA’s Vera CPU in Detail: High Perf Chip Takes Aim at Broader AI Server Market

submitted by /u/-protonsandneutrons- to r/hardware [link] [comments]

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I Joined My First Job and the Homepage Took Forever to Load
DEV Community • 2026-03-21 05:44

I Joined My First Job and the Homepage Took Forever to Load

Thinking back to my first real frontend job still stings. I wasn't a total coding newbie—I had a CS degree and plenty of full-stack school projects. But professional work? Zero experience. No production traffic, no performance budgets, and no QA breathing down my neck about real users bouncing. When I joined, the e-commerce homepage felt brutally slow. QA kept dropping the same messages week aft...

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7m read
Five European nations and Japan ready to 'contribute' to securing Hormuz
newest submissions : multi • 2026-03-21 05:44

Five European nations and Japan ready to 'contribute' to securing Hormuz

submitted by /u/jupa300 to r/worldnews [link] [comments]

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DEV Community • 2026-03-21 05:38

Variables in JavaScript 101

Disclaimer: I am not a professional software engineer nor a computer science student. This is more of what I understand about variables in JavaScript from what I read on MDN Web Docs. JavaScript Variables A variable is like a label that points to a certain space in the computer's memory. When you assign a data type or object to a variable, it goes into that space. Declari...

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9m read
DEV Community • 2026-03-21 05:38

You Don't Need Redux: Zustand + TanStack Query Replaced 90% of My State Management

Every React project I built between 2019 and 2023 started the same way: install Redux Toolkit, create a store, write slices for auth, write slices for UI state, write slices for API data, write thunks to fetch that API data, write selectors to read it back out. Hundreds of lines of boilerplate before a single feature was done. Then I looked at what those slices actually contained. Most of them we...

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6m read
newest submissions : multi • 2026-03-21 05:34

How Large Language Models are built and how they work

Everyone's using LLMs. Few people truly understand what's happening under the hood. If you're an engineer integrating GPT-5 into your product, a PM scoping an AI feature, or a founder trying to decide between fine-tuning and prompting — you need more than surface-level intuition. You need to understand the machinery that makes these models tick. This article is that walkthrough. We'll trace the fu...

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Ukraine war briefing: Children ordered to leave key Ukrainian stronghold as Russians advance
newest submissions : multi • 2026-03-21 05:34

Ukraine war briefing: Children ordered to leave key Ukrainian stronghold as Russians advance

submitted by /u/jupa300 to r/worldnews [link] [comments]

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1m read
Intel Reportedly Readies a 10% Price Hike for Consumer CPUs
newest submissions : multi • 2026-03-21 05:33

Intel Reportedly Readies a 10% Price Hike for Consumer CPUs

submitted by /u/xenocea to r/hardware [link] [comments]

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1m read
Trump administration lifts sanctions on millions of barrels of Iranian oil
newest submissions : multi • 2026-03-21 05:32

Trump administration lifts sanctions on millions of barrels of Iranian oil

submitted by /u/Thomas_Crane to r/worldnews [link] [comments]

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newest submissions : multi • 2026-03-21 05:30

Why Cursor (and most AI dev tools) won’t survive the next 2 years

submitted by /u/Frosty-Judgment-4847 to r/software [link] [comments]

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1m read
newest submissions : multi • 2026-03-21 05:26

Police video of Justin Timberlake's 2024 drunken driving arrest released

submitted by /u/Perfect_HH to r/news [link] [comments]

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1m read
The Junior Developer Crisis of 2026: AI Is Creating Developers Who Can’t Debug
DEV Community • 2026-03-21 05:25

The Junior Developer Crisis of 2026: AI Is Creating Developers Who Can’t Debug

Every few decades, a technological shift fundamentally alters the “barrier to entry” for human knowledge. The calculator didn’t kill mathematics, but it changed how we teach it. The internet didn’t kill research, but it killed the encyclopedia. Today, we are facing a shift far more profound and, if left unaddressed, far more dangerous. Generative AI is not just changing how we write code; it is c...

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6m read
Linux Fundamentals for Data Engineering
DEV Community • 2026-03-21 05:25

Linux Fundamentals for Data Engineering

Linux stands out as a usefool tool in data engineering because of it's unique features: the Command Line interface CLI, Compatibility with most Data Tools, Security and Scalability as well as cost effectiveness due to being an open source platform. These attributes make the work of an individual or organisation in Data Engineering easier. As a beginner here are some of the things to look out for ...

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3m read
newest submissions : multi • 2026-03-21 05:23

Iran war halts Qatar helium output, threatening global tech supply chains

submitted by /u/Shadow328 to r/news [link] [comments]

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DEV Community • 2026-03-21 05:23

I got mass-DM'd by my teammate's Claude Code and honestly? It was great.

Last Tuesday I was deep in a refactor the kind where you've got six files open and you're holding the entire dependency graph in your head. Then Slack pings. "Hey, how does the auth middleware handle expired tokens? I'm building the refresh flow." It's from Jake. Good question. But now I have to: Context-switch out of my work Open Claude Code Paste Jake's question Wait for the answer Copy t...

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4m read
newest submissions : multi • 2026-03-21 05:22

Job seekers aren’t imagining things: the number of candidates ghosted by employers just reached a three-year high thanks to AI

submitted by /u/dtrainnyc to r/news [link] [comments]

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1m read
newest submissions : multi • 2026-03-21 05:21

Woman, 80, receives probation and no jail time over San Francisco crash that killed four | San Francisco

submitted by /u/Perfect_HH to r/news [link] [comments]

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newest submissions : multi • 2026-03-21 05:17

Chapter 1 Reloaded: Dual-Core Light Tasking – Blinking LEDs on Both Cores

submitted by /u/unitedbsd to r/programming [link] [comments]

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