DEV Community • 2026-04-25 18:38

When 'getting faster' isn't the same as 'getting better'

Anthropics February 2026 study classified 11 observable collaboration behaviors across 9,830 Claude conversations. Things like how often you delegate multi-step reasoning, how much you describe context versus just issue commands, whether you push back on outputs or accept the first result. They called it the AI Fluency Index. I'd been using Claude Code daily for months. When I read the study I re...

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DEV Community • 2026-04-25 18:37

I built a PostgreSQL learning platform with labs & quizzes — would love feedback

Hey everyone, I built postgresqlacademy.com, a platform focused on helping beginners learn PostgreSQL step by step. It includes structured lessons, quizzes, hands-on lab exercises, and a 1-on-1 chat feature for getting help when you’re stuck. I’m trying to focus more on practical learning, so most lessons include real queries and scenarios instead of just theory. There’s a free tier available, ...

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Can your code survive 1.5 Billion rounds of digital betrayal? Submit your strategy!
DEV Community • 2026-04-25 18:31

Can your code survive 1.5 Billion rounds of digital betrayal? Submit your strategy!

Crazy Start I built N-Prisoner's Dilemma game engine in C++ and run a tournament to find out what strategy is the best? Write your strategy and fight with other players in this game theory battle. When I decided to make this game I couldn't even imagine that my ThinkPad would be the place of the Ten minute war. 25 strategies fought in more than 0.5 Million of battles each has approxim...

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DEV Community • 2026-04-25 18:31

Is a Data Science Bootcamp Worth It in 2026?

If you’re asking data science bootcamp worth it, you’re really asking a sharper question: will a bootcamp compress enough learning and portfolio output to justify the time, money, and opportunity cost versus self-study? In online education, the honest answer is: sometimes—but only when the program matches your background, schedule, and target role. What you actually buy with a bootcamp ...

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Hacker News: Front Page • 2026-04-25 18:30

AI agents that argue with each other to improve decisions

Article URL: https://github.com/rockcat/HATS Comments URL: https://news.ycombinator.com/item?id=47903471 Points: 10 # Comments: 1

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How Website Technology Detection Actually Works
DEV Community • 2026-04-25 18:27

How Website Technology Detection Actually Works

Every developer has wondered at some point: what is this site built with? Maybe you’re doing competitive research, reverse-engineering a stack decision, or just curious how a particularly fast site achieves its performance. Tools like Wappalyzer answer this question instantly. But how do they actually know? The answer is more interesting than you’d expect and involves four distinct layers of anal...

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What is jQuery Really? A Look Under the Hood
DEV Community • 2026-04-25 18:25

What is jQuery Really? A Look Under the Hood

What is jQuery Really? jQuery can drastically simplify and alleviate many headaches when working with HTML, CSS, and JavaScript. Taking a little time to understand how a tool works — the mechanism that drives it — is often the difference between having access to a tool and having command over it. To better understand what jQuery is doing under the hood, it is helpful to understand a little bit a...

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DEV Community • 2026-04-25 18:24

Building the First Anti-Fragile University: Introducing ACLAS Neuro-Edu SDK v3.0 🚀

Building the First Anti-Fragile University: Introducing ACLAS Neuro-Edu SDK v3.0 🚀 At the Atlanta College of Liberal Arts and Sciences (ACLAS), we believe that elite education should be a universal human right, not a privilege gated by geography or economic status. Today, we are thrilled to announce the official release of the ACLAS Neuro-Edu SDK v3.0 — our industrial-grade, open-sour...

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DEV Community • 2026-04-25 18:24

Those Green Squares! (Github Edition | Part 1)

Check out my GitHub Profile ! [https://github.com/thebartakke-anup] The Addiction of the Green Square... You create a repository, you push a few lines of code, and suddenly, you see it: that first bright green square on your GitHub profile. At first, it’s just a tracker, but soon, it becomes a high score or a streak. You find yourself wanting to "commit just one more thing" before bed. You start...

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Lobsters • 2026-04-25 18:24

Linux May Drop Old Network Drivers Now That AI-Driven Bug Reports Are Causing A Burden

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Hacker News • 2026-04-25 18:23

Show HN: Quay – Menu-bar Git sync

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Stop Burning Tokens (and Brain Cells): A CLI Pomodoro Timer for Focused Coding
DEV Community • 2026-04-25 18:17

Stop Burning Tokens (and Brain Cells): A CLI Pomodoro Timer for Focused Coding

While struggling with concentration, I've always forced myself to use techniques that help me stay in flow while still leaving room to stretch, grab some snacks, or prepare a matcha latte. Giving the brain time to stray away from a problem often helps to solve it in the 'background.' Nothing fits this better than the Pomodoro Technique. I used to use browser-based tools, but as my workflow shifte...

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DEV Community • 2026-04-25 18:16

Crew with Gemma-4 in Colab

Let me walk you through something I have been experimenting with lately, running a local AI agent that detects hate speech, powered by Google's Gemma 4 model and the CrewAI framework, all without calling any paid API. No keys, no credits. Just a local model and python. Let me explain how I put this together. Why Gemma + CrewAI? Most CrewAI tutorials you will find online default to GPT-...

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DEV Community • 2026-04-25 18:09

How to Build a Production-Ready Registration System Without a Backend (Using HosteDay API)

Introduction Building a complete registration system usually means setting up a backend, managing authentication, handling validation, and securing endpoints. But what if you could skip all of that? In this tutorial, you’ll build a production-ready user registration system by connecting a simple frontend directly to the HosteDay API—no backend required. Instead of focusing on infrastructure, you...

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Code In, Cluster Out: Building Reproducible Edge Kubernetes with NixOS, K3s, and Forgejo
DEV Community • 2026-04-25 18:09

Code In, Cluster Out: Building Reproducible Edge Kubernetes with NixOS, K3s, and Forgejo

What if your entire Kubernetes edge cluster, from the kernel to the workload, was a single reproducible function? No drift. No snowflakes. No, "this node got fixed manually six months ago, and nobody remembers how." Just code in, cluster out. That question led me into a project that combines: infrastructure-nixos for the Raspberry Pi-hosted Forgejo control path edge-cluster-infra for Oracl...

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DEV Community • 2026-04-25 18:03

AI security monitoring at scale: one LLM call, every dashboard

How CoinHawk runs a continuous AI security scan for every connected user using a single shared LLM call every 5 minutes. The dumb version doesn't scale Imagine you want every user's dashboard to display a live "security score" produced by an LLM. The first instinct is: GET /api/security/scan → call OpenAI → return result If 1,000 users hit the dashboard, you make 1,000 ...

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DEV Community • 2026-04-25 18:01

Is a Data Science Bootcamp Worth It in 2026?

If you’re typing data science bootcamp worth it into Google, you’re probably torn between spending a few hundred (or a few thousand) dollars and spending months piecing together learning from YouTube and random notebooks. The real question isn’t “can I learn data science online?”—you can. It’s whether a bootcamp is the fastest, most reliable path for your constraints (time, budget, accountability,...

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HackerNoon • 2026-04-25 18:00

Crates.io: The Code Changes That Were Made

On 2024-03-04 we will switch the API from returning "200 OK" status codes for errors to the new 4xx/5xx behavior.

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DEV Community • 2026-04-25 17:58

Verifying real wallet ownership without gas: a signed-nonce pattern with viem + Express

A production walkthrough of the auth pattern powering CoinHawk's admin layer — and why "the client says they're 0xABC" is a security bug. The naive way (and why it's broken) When a user connects MetaMask to your dapp, the browser hands you their wallet address through window.ethereum.request({ method: "eth_requestAccounts" }). Tempting flow: Frontend asks MetaMask for the address ...

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DEV Community • 2026-04-25 17:56

How I built an AI crypto trading dashboard in a weekend with Replit + Base

A practical breakdown of CoinHawk: what it does, how it's wired, and what surprised me along the way. I've been trading crypto on the side for about three years and the same thing kills me every time: I miss the move. The signal hits at 3am, my Discord pings, I'm asleep, and by the time I wake up the trade is gone. So last weekend I built CoinHawk — an AI-powered trading dashboard that watche...

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