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DEV Community • 2026-04-21 09:40

The no BS guide to show your impact with XYZ Framework

How many times have you lost a promotion because you weren't able to describe your contributions to a project? Or even worse, has it never happened that you couldn't quickly present the impact you had with your last team during an interview? I know the feeling, because I felt it more times than I'd like to admit. For most of my career all that mattered was the quality of my code and how clear I...

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10m read
DEV Community • 2026-04-21 09:39

Claude! Stop Burning Tokens on Your Agent's Tool Output!

A Two-Stage Curator That Pays for Itself I watched Claude Code feed 108,894 bytes of seq 1 20000 back into its own context window. That output contained 20,000 integers. No errors. No signal. No insight. Just counting. And yet the system still had to tokenize it, send it back to the model, and bill for it. This is not an edge case. It is the default failure mode of agent tooling. Tools produc...

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9m read
DEV Community • 2026-04-21 09:35

From Personal Project to Engineering Lesson: What 40 Dev.to Posts Taught Me About Building Software

From Personal Project to Engineering Lesson: What 40 Dev.to Posts Taught Me About Building Software Honestly, I never thought I'd write 40 articles about the same project. Here I am, two years and 1,847 hours later, staring at my "personal knowledge base" project that somehow became my biggest engineering lesson. What started as a simple "I need to organize my notes" experiment turned i...

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8m read
DEV Community • 2026-04-21 09:34

Building the Future: The Journey of Kamsi Ibeawuchi

When I first started coding, I thought it would be straightforward. Learn the syntax, understand the logic, and build something cool. It didn’t happen that way. I’m Kamsi Ibeawuchi, a Software Developer, AI enthusiast, and UI/UX designer—and my journey into coding started with confusion, frustration, and a lot of unanswered questions. 💭 The Reality No One Talks About At the beginning, everything f...

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2m read
DEV Community • 2026-04-21 09:33

7 Hidden Uses of Context Engineering You Probably Didn't Know in 2026

Introduction Most developers are using Claude Code completely wrong. While the internet is flooded with "how to install Claude Code" tutorials, the real power users have already moved on to Context Engineering -- a discipline so powerful that GitHub officially endorsed it in a blog post titled "Want better AI outputs? Try context engineering." If you're still feeding raw prompts to your...

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9m read
DEV Community • 2026-04-21 09:33

Effective Request Cancellation with Axios in JavaScript

Originally published on PEAKIQ Key Points: CancelTokens in Axios: Axios allows us to create CancelTokens using the CancelToken.source() method. These tokens can be included in requests to enable cancellation. Canceling Requests: To cancel a request, we call the cancel function on the CancelToken source. This interrupts the ongoing request and triggers an Axios cancellation error. ...

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2m read
DEV Community • 2026-04-21 09:32

The Missing Layer in Every AI Agent Framework Comparison

Every comparison of AI agent frameworks evaluates features, APIs, and ease of use. But they all miss one thing: what happens when you need to run agents from different frameworks together. The Article That Sparked This I recently read @shlokaguptaa's excellent article "ELi5 : AI Workflows vs AI Agents, Explained with LEGOs" and it resonated deeply with challenges I've been solving i...

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2m read
Detective mode: Fixing the MongoDB Aggregation pipeline
DEV Community • 2026-04-21 09:32

Detective mode: Fixing the MongoDB Aggregation pipeline

This article was written by Darshan Jayarama. It was a Friday, and I was quickly wrapping up my week, finishing the tasks that were assigned. Suddenly, the board became red — another S1. I was like, not now!!! The application team started complaining about the API responses from the database, going from 600ms to 17 seconds. Booooom!!! That’s insane. No other choice — since it was production, I h...

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6m read
DEV Community • 2026-04-21 09:31

Securing MCP in Production: PII Redaction, Guardrails, and Data Exfiltration Prevention

Production is a different security environment In development, the worst that happens when an agent misbehaves is a confusing output or a wasted API call. In production, an agent with access to real customer data, live databases, and external communication tools can exfiltrate sensitive records, corrupt data, or generate outputs that violate regulatory requirements — all before a human ...

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5m read
DEV Community • 2026-04-21 09:28

Two Years Later: What My "Second Brain" Project Really Taught Me About Productivity

Two Years Later: What My "Second Brain" Project Really Taught Me About Productivity Honestly, when I first started building Papers two years ago, I thought I was being brilliant. I was going to create the ultimate personal knowledge management system - a "second brain" that would make me super productive, help me remember everything, and basically solve all my problems with information ...

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6m read
DEV Community • 2026-04-21 09:27

What is the Internet? A Beginner’s Guide to How It Travels Across the World

🌐 What is the Internet? (And How Does It Actually Reach You?) 💡 What is the Internet? The Internet is a vast collection of interconnected computer networks that communicate with each other across the world. In simple terms, it’s like a global system of roads, where data travels between devices—your phone, laptop, servers, and more. 🤔 Ever wondered… how does the Internet actually reach you? Whe...

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2m read
DEV Community • 2026-04-21 09:26

How Linux is Used in Real-World Data Engineering

So, you know Python and think, "Hey, why don't I get into Data Engineering?" You have your learning checklist ready to go, but there’s a giant, terminal-shaped hole in your plan: Linux. While Python is the language of data, Linux is the environment where that data actually lives. Most production systems are built entirely on it, yet many beginners don't realize they need it until they’re staring ...

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3m read
DEV Community • 2026-04-21 09:25

How to Upgrade "Dumb" Legacy EV Chargers to OCPP 2.0.1 (Without Ripping Them Out)

The global EV charging network is growing up. We are officially transitioning from the "wild west" era of massive, blind deployment into a phase of highly refined operations and smart grid integration. The simple land grab is over; today’s game is all about software management, system integration, and squeezing the ultimate utilization out of your hardware. But here is the massive architectural h...

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2m read
DEV Community • 2026-04-21 09:23

"How I Started Coding — And Why Tony Stark Inspires My Journey

Everyone has a starting point. Mine wasn’t perfect, clear, or even planned. It started with curiosity — the simple question: “How are these things built?” I’m Kamsi Ibeawuchi, a Software Developer, AI enthusiast, and UI/UX designer. But before all of that, I was just someone fascinated by technology, ideas, and the power behind the screens we use every day. 💡 The Beginning: Curiosity Over Clarity ...

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2m read
DEV Community • 2026-04-21 09:22

Building a Simple CLI To-Do App in Rust Using Cargo

Originally published on PEAKIQ Getting Started To follow along, ensure you have Rust installed on your system. You can install Rust using Rustup. Once installed, create a new Rust project: cargo new rust_todo cd rust_todo Now, open the main.rs file and start coding! Writing the Code Below is the full implementation of our simple CLI-based CRUD app in Rust: ...

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2m read
Christian Heilmann • 2026-04-21 09:22

How do developers define their worth when code is written by AI?

Lately I’ve been in a few podcasts and interviews and one question came up almost every time: What is left for developers to care about or define themselves with when all the code is written by AI? Here is the quick answer: being a developer was never about writing code. Code is a tool to […]

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1m read
Kafka 101: Why Event Streaming is the Central Nervous System of Modern Data
DEV Community • 2026-04-21 09:21

Kafka 101: Why Event Streaming is the Central Nervous System of Modern Data

Digging into a new universe of data streaming after IBM’s recent accquisition of Confluent! Introduction Data is no longer a static asset — it’s a live pulse. Following IBM’s $11B acquisition of Confluent, the bridge between real-time streaming and enterprise AI has never been shorter. I’m diving into the new universes of data-in-motion to see how this ‘Smart Data’ foundation is changing the ga...

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16m read
I Built an “Online but Not Replying” System… And It Created Trust Issues 😭
DEV Community • 2026-04-21 09:21

I Built an “Online but Not Replying” System… And It Created Trust Issues 😭

You’ve seen this. They are Online You send a message … … No reply. Still online. 👉 Now you’re thinking: Are they busy? Ignoring you? Or is the system wrong? So I turned this into a coding challenge. And honestly… it exposed a real bug. 😂 The Problem The logic looks simple: User opens app → set Online User leaves → set Offline That’s it. But real systems don’t behav...

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2m read
DEV Community • 2026-04-21 09:19

head.tsx Is Just a React Component: Dynamic SEO Meta from Loader Data

head.tsx Is Just a React Component: Dynamic SEO Meta from Loader Data Let's be honest, dealing with SEO and meta tags has historically been one of those tasks developers often begrudgingly tackle. It feels like a necessary evil, often an afterthought, and rarely elegant. We’ve all been there: a marketing team asks for unique titles and descriptions for every single product page, or a sp...

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6m read
DEV Community • 2026-04-21 09:18

Go queue v1.7.0: a new Delay queue for timers, retries, and TTLs

I just tagged v1.7.0 of github.com/adrianbrad/queue, a thread-safe generic queue package. The headline feature is a new Delay queue. What is Delay? Delay is a priority queue where each element becomes dequeuable at a deadline computed by a caller-supplied function at Offer time. Get returns ErrNoElementsAvailable until the head is due; GetWait sleeps until it is. type task struct { ...

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2m read
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