DEV Community • 2026-04-07 08:53

Docker Multi-Stage Builds: Shrink Your Production Images by 80%

Docker Multi-Stage Builds: Shrink Your Production Images by 80% A naive Dockerfile for a Next.js app produces a 1.2GB image. Multi-stage builds get that under 200MB. Here's how. The Problem with Single-Stage Builds # Bad — everything ends up in production FROM node:20 WORKDIR /app COPY package*.json ./ RUN npm install # includes devDependencies COPY . . RUN npm run...

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DEV Community • 2026-04-07 08:52

Production-Ready Error Boundaries in React: Patterns for Graceful Failures

Production-Ready Error Boundaries in React: Patterns for Graceful Failures Unhandled render errors crash your entire React tree. Error boundaries contain the damage. Here's how to use them effectively in production. The Problem // If UserCard throws, the entire page goes blank function Dashboard() { return ( <div> <Header /> <UserCard /> ...

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DEV Community • 2026-04-07 08:51

TypeScript Generics Deep Dive: Constraints, Inference, and Real-World Patterns

TypeScript Generics Deep Dive: Constraints, Inference, and Real-World Patterns Generics are the most powerful feature in TypeScript that most developers underuse. Here's everything you need to go from basic <T> to production-grade patterns. Why Generics Exist Without generics, you have two bad options: // Option 1: specific types (not reusable) function firstNumber(a...

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Israel threatens Iran’s trains, railways before Trump’s deadline expires
newest submissions : multi • 2026-04-07 08:47

Israel threatens Iran’s trains, railways before Trump’s deadline expires

submitted by /u/Alert-Ad-3053 to r/worldnews [link] [comments]

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Afreximbank sets out $10 bln support plan to ease Middle East conflict impact in Africa and Caribbean
newest submissions : multi • 2026-04-07 08:46

Afreximbank sets out $10 bln support plan to ease Middle East conflict impact in Africa and Caribbean

submitted by /u/fancy-Lisa to r/worldnews [link] [comments]

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DEV Community • 2026-04-07 08:46

HTML Lists for Beginners: 5 Mistakes Killing Your UX

TL;DR Most beginners use <ul> and <ol> interchangeably and wonder why their pages feel broken. There is one nesting mistake in particular that silently destroys screen reader accessibility — and almost nobody talks about it. This post covers the five biggest HTML list errors and how to fix them fast. The Problem: Your List Code Looks Fine But Feels Wrong You l...

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Vancouver-based mining company confirms the deaths of 9 of 10 workers kidnapped in Mexico
newest submissions : multi • 2026-04-07 08:45

Vancouver-based mining company confirms the deaths of 9 of 10 workers kidnapped in Mexico

submitted by /u/Immediate-Link490 to r/worldnews [link] [comments]

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Hacker News: Front Page • 2026-04-07 08:42

Blackholing My Email

Article URL: https://www.johnsto.co.uk/blog/blackholing-my-email/ Comments URL: https://news.ycombinator.com/item?id=47672318 Points: 4 # Comments: 0

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DEV Community • 2026-04-07 08:41

When Distribution Becomes a Substitute for Design — and Fails

A lot of modern software architecture—microservices, event-driven systems, CQRS—is not born from deeply understanding the domain. It is what teams reach for when the existing application has become a mess: nobody really knows what’s happening where anymore, behavior is unpredictable, and making changes feels risky and expensive. Instead of asking “What does this concept actually mean and where doe...

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Hacker News: Front Page • 2026-04-07 08:38

Every GPU That Mattered

Article URL: https://sheets.works/data-viz/every-gpu Comments URL: https://news.ycombinator.com/item?id=47672295 Points: 9 # Comments: 2

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New GPUBreach Attack Enables Full CPU Privilege Escalation via GDDR6 Bit-Flips
The Hacker News • 2026-04-07 08:38

New GPUBreach Attack Enables Full CPU Privilege Escalation via GDDR6 Bit-Flips

New academic research has identified multiple RowHammer attacks against high-performance graphics processing units (GPUs) that could be exploited to escalate privileges and, in some cases, even take full control of a host. The efforts have been codenamed GPUBreach, GDDRHammer, and GeForge. GPUBreach goes a step further than GPUHammer, demonstrating for the first time that

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Iranian Musician Ali Ghamsari Holds Sit-In Outside Damavand Power Plant After President Donald Trump Threat
newest submissions : multi • 2026-04-07 08:37

Iranian Musician Ali Ghamsari Holds Sit-In Outside Damavand Power Plant After President Donald Trump Threat

submitted by /u/Wise-Climate-3839 to r/worldnews [link] [comments]

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newest submissions : multi • 2026-04-07 08:36

Proposition: Mandatory AI usage declaration

This sub is being flooded with submissions of AI generated apps. And if I can be perfectly honest here, a lot of them seem very low quality and low effort. I'm not going to argue that all AI generated software is inherently bad ("AI slop"), that is an entirely different discussion. But I'm going to argue that users should be given the opportunity to decide whether they want to use and su...

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DEV Community • 2026-04-07 08:35

Forms Accessibility: The 8 Trusted Tester Test IDs You Need to Know

A developer’s guide to labels, context changes, error handling, and prevention based on the DHS Section 508 Trusted Tester conformance process. You thought Keyboard Access and Focus was a big topic? Well, so was our 4th session of the DHS Section 508 Trusted Tester Study Group: Forms cover 8 Test IDs in total. Forms are where users give us their data, and where failures can block...

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Stop Building Isolated Apps: The MCP and Swarm Orchestration Ecosystem is Here (And How to Find the Right Stacks)
DEV Community • 2026-04-07 08:35

Stop Building Isolated Apps: The MCP and Swarm Orchestration Ecosystem is Here (And How to Find the Right Stacks)

We need to talk about the absolute junk flooding our feeds. If I see one more "text-in-text-out wrapper" masquerading as a technical breakthrough, I'm going to lose it. The landscape has shifted entirely in 2026. We are no longer querying standalone endpoints. If your stack isn't utilizing Model Context Protocol (MCP) to fetch real-time datastore context, or leveraging Swarm Orchestration to run...

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DEV Community • 2026-04-07 08:34

Web Accessibility in React: Semantic HTML, ARIA, Focus Management, and axe Testing

Accessibility isn't a feature you add at the end — it's a quality signal that correlates with better code overall. Well-structured, accessible apps tend to have better semantics, better keyboard behavior, and better performance. Here's the practical implementation. Semantic HTML First Every accessibility problem that seems hard is often just a semantic HTML problem: // Bad -- div so...

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AI Agents Don’t Need Bigger Context Windows. They Need Real Memory
DEV Community • 2026-04-07 08:33

AI Agents Don’t Need Bigger Context Windows. They Need Real Memory

Most AI agents today are brilliant but amnesiac. While they can reason through complex tasks in a single session, they fail the moment they need to remember a user’s specific preference from last week or a project constraint mentioned three conversations ago. As engineers, we often try to solve this by increasing context windows or stuffing more tokens into the prompt. This is a mistake. A larg...

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DEV Community • 2026-04-07 08:33

VRAM Is the New RAM — A Practical Guide to Running Large Language Models on Consumer GPUs

Your GPU has 8 GB of VRAM. The model you want to run needs 14 GB. What now? This is the most common wall people hit when running LLMs locally. Cloud APIs don't care about your hardware — local inference does. Understanding VRAM is the difference between smooth 40 tok/s responses and your system grinding to a halt. I've spent months optimizing local AI setups and building tools around Ollama. Her...

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DEV Community • 2026-04-07 08:32

Is Your Code Eco-Friendly? A proxy to understand Carbon Impact

Intro: We spend countless hours optimizing for performance, scalability, and user experience. But how often do we consider the environmental impact of the code we write? As AI payloads grow and data flows increase, every API call, every byte transferred, contributes to a larger digital footprint. It's time we started thinking about the carbon cost of our digital endeavors. This isn't about guilt-t...

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DEV Community • 2026-04-07 08:32

Best MCP Gateway for 50% Token Cost Savings

TL;DR: Classic MCP dumps 100+ tool definitions into every LLM call. Bifrost's Code Mode generates TypeScript declarations instead, cutting token usage by 50%+ and latency by 40-50%. If you are running 3 or more MCP servers, this is the single biggest cost lever you have. The Problem with Classic MCP I have been testing MCP setups for a few months now. The standard approach is simple. Y...

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