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(EDA Part-3) Univariate Analysis — Understanding Every Feature One at a Time
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DEV Community · Technology

(EDA Part-3) Univariate Analysis — Understanding Every Feature One at a Time

Part 3 of 5 — Intermediate In Part 2, we got the patient's file open. Now, it is the time for the real examination. We're going to look at each "organ"—each feature in our dataset — one by one. This is called univariate analysis, which is just a fancy term for looking at one variable at a time....

Shivappa
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Building Stateful AI Agents with Backboard: A Complete Feature Deep Dive
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DEV Community · Technology

Building Stateful AI Agents with Backboard: A Complete Feature Deep Dive

The AI agents have evolved far beyond simple chatbots. They're evolving into autonomous systems capable of reasoning, remembering, retrieving knowledge, and executing actions. But building such systems from scratch? It usually means stitching together: Vector databases Memory layers Tool orchestr...

Ranjan Dailata
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I Built a Carbon Footprint Tracker in 48 Hours — Here's How Copilot Saved Me
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DEV Community · Technology

I Built a Carbon Footprint Tracker in 48 Hours — Here's How Copilot Saved Me

This is a submission for the Weekend Challenge: Earth Day Edition 🌱 What I Built I built EcoTrack Pro — a beautiful, privacy-first carbon footprint calculator that helps individuals understand and reduce their environmental impact. The problem: Most carbon calculators are either too...

HARD IN SOFT OUT
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Examlock
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DEV Community · Technology

Examlock

ExamLock Secure exams, live classroom workflows, and real-time proctor intervention. DEMO ExamLock is more than a lock screen for tests. It is a full classroom and assessment platform with: A Flutter mobile app for both students and teachers Role-based home layout...

Zheus Leiandre Codez Cajote
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A declarative CLI framework in Rust
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DEV Community · Technology

A declarative CLI framework in Rust

I built a declarative CLI framework in Rust (define your CLI in TOML) Most Rust CLI tools are built with libraries like clap. They’re powerful—but also verbose. After building a few internal tools, I kept running into the same problem: Too much boilerplate for simple commands Repeating argume...

kuangren chu
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a claude code/codex plugin to run autoresearch on your repository
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DEV Community · Technology

a claude code/codex plugin to run autoresearch on your repository

i built https://github.com/evo-hq/evo for those of you who are autoresearch pilled , or have been meaning to get into autoresearch but dont know how. Its an opensource Claude Code & Codex plugin that optimizes code through experiments you hand it a codebase. it finds a benchmark, runs the bas...

Alok Bishoyi
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AI startup claims to automate app making but actually just uses humans
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DEV Community · Technology

AI startup claims to automate app making but actually just uses humans

When "AI Automation" is Just Human Labor: A Developer's Reality Check The AI landscape is a minefield of hype and promises. As developers, we're constantly sifting through marketing fluff to find the actual signal – the tools, frameworks, and methodologies that genuinely push boundaries a...

Steffen Kirkegaard
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The Scroll Animation That Was Hiding Our LCP Element
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DEV Community · Technology

The Scroll Animation That Was Hiding Our LCP Element

Mobile LCP of 6-7 seconds. Server response of 72ms. The problem was a scroll animation hiding our primary heading at opacity 0 until JavaScript hydrated. Here is what we found and how we fixed it. The numbers did not add up We ran Lighthouse on the Stackra.app homepage. Desktop performance scored...

Luke Beck
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Java Collections: Everything You Need to Know About the List Interface
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DEV Community · Technology

Java Collections: Everything You Need to Know About the List Interface

1.List Interface : The List interface is part of java.util and extends the Collection interface. It represents an ordered sequence of elements — you can access any element by its position (index). It is Ordered It Allows duplicates Index-based access import java.util.List; import java.util.A...

Arul .A
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US midwestern states at risk of severe thunderstorms, weather agency warns
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The Guardian · World

US midwestern states at risk of severe thunderstorms, weather agency warns

About 26 million people are under tornado watches from Wisconsin to Oklahoma, according to one reportA stretch of the midwestern states is at risk of severe weather, forecasters warned on Friday, as tornadoes battered towns across the central US region, leaving behind debris and destroyed property.A...

Uwa Ede-Osifo
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Show HN: SleepyQuant – a 12-agent crypto quant running on one Mac
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DEV Community · Technology

Show HN: SleepyQuant – a 12-agent crypto quant running on one Mac

Show HN: SleepyQuant – a 12-agent crypto quant running on one Mac Hey everyone, SleepyQuant is a solo experiment I've been running for the last couple of weeks: 12 local AI agents coordinating a paper crypto trading book on a single Apple M1 Max. No cloud inference, no API bills, no vend...

Đỗ Hiệp
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Create Video Receipts for AI Agents with Playwright Screencast API
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DEV Community · Technology

Create Video Receipts for AI Agents with Playwright Screencast API

TL;DR Playwright v1.59.0 ships the Screencast API, letting AI agents produce verifiable video evidence of their work. Engineers can replay agent actions with chapter markers and action annotations—no manual test replay required. Setup is three lines: start the screencast, run your agent l...

Anton Gulin
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Brain, Explained
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DEV Community · Technology

Brain, Explained

Alright, let’s talk about AI coding. If you’ve been using ChatGPT, Codex, Claude… whatever your weapon of choice is — you’ve probably felt this already. Sometimes it’s insane. Like… how did it just write that? Other times, it’s just frustrating. You explain something. It kind of gets it. Then you as...

Jimmy McBride
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I built a small P2P lib over UDP and it actually works
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DEV Community · Technology

I built a small P2P lib over UDP and it actually works

I built a small P2P lib over UDP and it actually works So I got tired of every P2P library being either massive or too opinionated. Hyperswarm is great but it pulls in a lot of stuff I don't need. I just wanted something small, auditable, and simple enough that I could reimplement it in R...

Spiral200
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GitHub Copilot in 2026 is not what you think it is anymore
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DEV Community · Technology

GitHub Copilot in 2026 is not what you think it is anymore

If you still think of GitHub Copilot as "the thing that autocompletes your code," you're about two years behind. That's not a criticism - the product has changed faster than most people's mental models of it. This post is an attempt to give you an accurate picture of what Copilot actually is right n...

Carlos José Castro Galante
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GraphQL vs REST: 18 Claims Fact-Checked with Primary Sources (2026)
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DEV Community · Technology

GraphQL vs REST: 18 Claims Fact-Checked with Primary Sources (2026)

What happens if we take a scientific approach to analyzing the most common claims about GraphQL vs REST? You might be thinking that you know the answer to most of these claims, and even I thought I did before I started this research. SPOILER ALERT: GraphQL is inferior to REST because it breaks HTT...

WunderGraph
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Jibun Corp's AI Hub Reaches 35 Providers: Adding SiliconFlow and Novita AI
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DEV Community · Technology

Jibun Corp's AI Hub Reaches 35 Providers: Adding SiliconFlow and Novita AI

Jibun Corp's AI Hub Reaches 35 Providers: Adding SiliconFlow and Novita AI We just crossed 35 providers in our unified AI Hub feature. Today we're adding two more OpenAI-compatible inference platforms: SiliconFlow and Novita AI. Why SiliconFlow? SiliconFlow (硅基流动) is China...

kanta13jp1
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How an ai gateway Unifies Your RFID Encoding and Data Processing Workflows
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DEV Community · Technology

How an ai gateway Unifies Your RFID Encoding and Data Processing Workflows

As RFID deployments grow more sophisticated, so does the software stack that powers them. You might have one AI model for serial number generation, another for error correction, a third for read range prediction, and yet another for compliance checking. Each model has its own API endpoint, authentic...

Jada Wiggins
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