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DEV Community · Technology

🚀 I Built a Browser-Local AI Assistant in Next.js with WebLLM, WASM, ONNX Runtime, Web Workers, and RAG

Most AI chat widgets are just frontends for a remote API. This one is different. My assistant runs its core retrieval and generation pipeline inside the browser using WebLLM, Web Workers, WASM, ONNX Runtime Web, and a local RAG architecture built in Next.js. You can try it here: 👉 https://data...

Kumaravelu Saraboji Mahalingam 6 days ago

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DEV Community · Technology

AI-Assisted Development Workflows: Code Review, Testing, and Documentation

AI has transformed software development. Code completion predicts what you will type next. AI reviewers catch bugs before human review. Test generation covers edge cases you might miss. Documentation updates happen automatically as code changes. This is not science fiction; it is the current state o...

Veduis 6 days ago

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DEV Community · Technology

Self-Hosted Pantheon vs Claude Managed Agents — A Real Cost Comparison

Why This Comparison Matters Now Anthropic just priced Claude Managed Agents at $0.08/session-hour. That number sounds small until you're running 8 persistent agents 12 hours a day. That's $23/day, $690/month — before compute, before API tokens. I've been running a self-hosted multi-agent...

Atlas Whoff 6 days ago

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DEV Community · Technology

YAML vs Markdown vs JSON vs TOON: Which Format Is Most Efficient for the Claude API

My own benchmark across three Claude tiers (Haiku, Sonnet, Opus): 120 data files, 8 real-world scenarios, 5 formats. Tokens, cost, and accuracy – numbers, not opinions. You Are Overpaying for Prompts Every time you send data to the Claude API, the format of that data determines how...

Webmaster Ramos 6 days ago

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DEV Community · Technology

No GPU? No problem!, running local AI efficiently on my CPU.

1. Why I tried this. 2. My setup. 3. The problems I faced. 4. The tweaks I discovered. 5. Results. 6. Lessons. THE WHY: I’ve always wanted to explore deep conversations with AI and understand how these systems work. For a l...

Erick Mwangi Muguchia 6 days ago

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Hacker News · Technology

Trusted access for the next era of cyber defense

Article URL: https://openai.com/index/scaling-trusted-access-for-cyber-defense/ Comments URL: https://news.ycombinator.com/item?id=47770770 Points: 17 # Comments: 6

surprisetalk 6 days ago

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Wired · Technology

In the Wake of Anthropic’s Mythos, OpenAI Has a New Cybersecurity Model—and Strategy

OpenAI says its safeguards “sufficiently reduce cyber risk” for now, while GPT-5.4-Cyber is a new cybersecurity-focused model.

Lily Hay Newman 6 days ago

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Ars Technica · Technology

Two-year-old Surface PCs get $300 price hikes as sub-$1,000 models go away

"Paying more for the same stuff" is the story of consumer technology in 2026.

Andrew Cunningham 6 days ago

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Ars Technica · Technology

Apple chooses Amazon satellites for iPhone, years after rejecting Starlink offer

Amazon announces $11.6B merger with Globalstar and satellite deal with Apple.

Jon Brodkin 6 days ago

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DEV Community · Technology

AVIF in 2026: The Complete Guide to the Image Format That Beat JPEG, PNG, and WebP

AVIF landed quietly in 2019 and spent years as the format nobody used. Then Chrome shipped native support. Then Firefox. Then Safari 16. By 2024, Can I Use reported 93% global browser coverage. And suddenly the question flipped from "can I use AVIF?" to "why aren't I using AVIF?" If you're still se...

Aral Roca 6 days ago

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DEV Community · Technology

Why your AI agent gets dumber over time (and how to fix memory drift)

Last week, a coding agent in a test repo did something weird: it opened the right files, referenced the wrong API version, and confidently wrote code for a migration we had already rolled back. Nothing was “broken” in the usual sense. The prompts were fine. The tools were available. The model was g...

Authora Dev 6 days ago

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DEV Community · Technology

I Shrunk My Docker Image From 1.58GB to 186MB. Then I Had to Explain What I Actually Broke.

Most Docker tutorials end at the win. "Look, smaller image! Ship it!" And then you're left alone at 11pm wondering why your perfectly optimized container is crashing in production doing something it did fine before. This article doesn't do that. We're going through both sides: how I got from 1.58G...

Arbythecoder 6 days ago

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DEV Community · Technology

Why I Ditched GA4 for a Custom Next.js + Supabase Analytics Stack

Why I Ditched GA4 for a Custom Next.js + Supabase Analytics Stack Let's be honest: GA4 is a nightmare for developers. It's built for enterprise marketing teams. For those of us building micro-SaaS or lean startups, it feels like flying a Boeing 747 just to go to the grocery store. I spen...

Zenovay 6 days ago

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The Verge · Technology

Dozens of 4K Blu-rays are included in Amazon’s three for $33 sale

Amazon has switched on its semi-regular three for $33 sale for a large batch of 4K Blu-ray movies. As usual, there are too many to list individually, though it’s a comprehensive mix of old and new flicks that should keep physical media fans scrolling for a minute. The steps to get in on the deal [&#...

Cameron Faulkner 6 days ago

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DEV Community · Technology

Unlocking the Ultimate Developer Toolkit: How I Got Over $4,000 in Google Cloud & Startup Credits 🚀

*Introduction* If you are an independent developer, a tech enthusiast, or a startup founder, you know the struggle: you have a brilliant idea, but the moment you try to scale it, the server, database, and API costs start piling up. Recently, I hit a major milestone in my tech journey. My applicati...

MITANSHU BHASIN 6 days ago

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DEV Community · Technology

How to Write a SaaS Landing Page That Converts

How to Write a SaaS Landing Page That Converts Pages with copy that matches what the reader already believes convert at 3x the rate of pages that lead with product features. The gap between a landing page that works and one that doesn't is almost never design. It's whether the words match...

Mohammed Ali Chherawalla 6 days ago

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Hacker News · Technology

Gas Town: From Clown Show to v1.0

Article URL: https://steve-yegge.medium.com/gas-town-from-clown-show-to-v1-0-c239d9a407ec Comments URL: https://news.ycombinator.com/item?id=47770124 Points: 42 # Comments: 35

martythemaniak 6 days ago

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DEV Community · Technology

I built a CLI to safely share .env files across teams

Every developer has done it. You finish setting up a project, and then you need to share the .env file with your teammate. So you paste it into Slack. Or email it. Or worse, you commit it to git by accident. None of these are good options. Slack logs are searchable. Emails get forwarded. Git history...

hillel ilany freedman 6 days ago

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Hacker News · Technology

ClawRun – Deploy and manage AI agents in seconds

Article URL: https://github.com/clawrun-sh/clawrun Comments URL: https://news.ycombinator.com/item?id=47770020 Points: 22 # Comments: 3

afshinmeh 6 days ago

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DEV Community · Technology

I Love Obsidian. But My AI Can't Use It.

I have over 800 notes in Obsidian. Architecture decisions from two years ago. Meeting notes I forgot I wrote. Debugging logs that saved me more than once. Random 2am ideas that somehow became real features. Obsidian is my second brain. I genuinely love it. But here's the thing that's been bugging...

Alfredo Izquierdo 6 days ago

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Ars Technica · Technology

UK gov's Mythos AI tests help separate cybersecurity threat from hype

New model is the first AI system to complete a difficult multi-step infiltration challenge.

Kyle Orland 6 days ago

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DEV Community · Technology

Top 7 Featured DEV Posts of the Week

Welcome to this week's Top 7, where the DEV editorial team handpicks their favorite posts from the previous week (Saturday-Friday). Congrats to all the authors that made it onto the list 👏 I Built an Agent to Run Live Event Raffles (then tried to rig it) Policy guardrails versus...

Jess Lee 6 days ago

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DEV Community · Technology

A Picture Is Worth a Thousand Tokens

Part of my job at Repaint is to get AI to generate websites that actually look good. It's surprisingly hard. AI models tend to fall into the same visual tropes over and over. It's so consistent that an "AI website" is becoming a recognizable aesthetic. We tested dozens of ways to break that pattern...

Ben Shumaker 6 days ago

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Hacker News · Technology

California ghost-gun bill wants 3D printers to play cop, EFF says

Article URL: https://www.theregister.com/2026/04/14/eff_california_3dprinted_firearms/ Comments URL: https://news.ycombinator.com/item?id=47769967 Points: 17 # Comments: 0

Bender 6 days ago

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