Dev.to

'Latency‑Optimization Experience – Real‑World Financial Trading System Engineer: System‑Performance Specialist 10 years

Problem You have a large TypeScript type defined in toto.tsx and need to reuse it in other screens e.g., titi.tsx. Copy‑pasting the type makes maintenance diff...

Entity and Sentiment Analysis with Google Cloud Natural Language API Keywords are a blunt instrument for a sharp problem. Every day, users leave a digital trai...

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Managing a crypto community is a full‑time job. Between the “When Moon?” questions and the “Is BTC dumping?” panic, community admins are often overwhelmed. What...

🚀 Executive Summary TL;DR: Many organizations blur the line between IaC template discovery and deployment, causing cognitive overload, error‑prone provisionin...

🚀 Executive Summary TL;DR: Tackling Advent of Code AoC in PowerShell presents challenges such as verbose input parsing and performance bottlenecks for complex...

Valet Key Analogy You go to a fancy restaurant and don’t want to find parking yourself. The valet asks for your car key, but you’re worried they might open the...

Setting Up GitHub Pages with GitHub Actions This article demonstrates how to create a GitHub repository with GitHub Pages enabled, from a basic “Hello World” e...

📌 1 💥 The Core Problem: Traditional Hashing Breaks in Distributed Systems ❓ The Scenario In a distributed system many servers handling data we must decide wh...

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Problem js // ❌ Dangerous: Transaction on pool async function transferFundsfrom, to, amount { await pool.query'BEGIN'; await pool.query'UPDATE accounts SET bal...

It was 3 AM. PagerDuty woke me up. Our API was returning 500 errors. The database was fine. CPU was fine. Memory was fine. But every query was timing out. FATAL...

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!Cover image for Technical Deep-Dive: Building 'Golden Path' Modules with Terraform and OPAhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,g...

Overview In this blog I explain how we used Azure Durable Functions actually AWS Step Functions equivalent to monitor delays in receiving third‑party webhooks....

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Deepfake & Mobile Identity Fraud: Securing AI Models with Docker ==================================================================== Deepfakes are no longer ex...

Building APIs That Don’t Rot: Lessons from Shipping Production Systems in C API Design: Pragmatism Over Purity REST is great on paper, but most real APIs end up...

MAX7219 8‑Digit 7‑Segment Driver Overview The MAX7219 is an 8‑digit 7‑segment or 8×8 LED matrix driver. Because it supports BCD decoding, it works especially w...

Goal A practical, beginner‑friendly roadmap for software engineers early‑ to mid‑career who want to become high‑impact, reliable, and technically versatile eng...

Allow a JavaScript Web App to Be Accessed by Other Devices on Windows When running a Next.js/React app in development on Windows, it may not be reachable from...

Introduction During the last days of 2025, our team lead took an extra day off and missed an important meeting. After a recent restructure, one colleague left...

Como medir ROI de agentes? - Custos reduzidos menos horas manuais - Decisões mais rápidas - Melhor experiência do usuário interno - Clientes mais satisfeitos E...

Introduction Let's be honest: you've copy‑pasted a regex from Stack Overflow without really understanding what it does, right? 😅 python ^a-zA-Z0-9_.+-+@a-zA-Z...

📚 Introduction As a full‑stack engineer with 10 years of development experience, I’ve watched web frameworks rise and fall—from the early jQuery era to today’...

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We recently had a sequence of production bugs that traced back to an AI code assistant recommending deprecated Pandas APIs. At a glance the snippets it produced...

In one project we leaned on a code‑generation assistant to perform a cross‑file refactor: rename a domain object and propagate the change through services, test...

So for 2025 I just want to leave a little gift for you folks to welcome in the new year. I recently wrote an article about publishing my first Claude Code plugi...

Last week, I got a Slack message from our Finance Team that made my stomach drop: > “Why is our Pinecone bill $4,200 this month?” We’re running a mid‑sized RAG...

Angular, React, or Vue? Which one actually makes sense for you to learn in 2026? If you're stepping into front‑end development — or even if you're already a de...

📈 Real Production Environment Challenges In our e‑commerce platform project we faced several typical performance challenges: 🛒 Flash‑Sale Scenario During maj...

Quick Install bash npm install --save-dev eslint-plugin-pg Flat Config js // eslint.config.js import pg from 'eslint-plugin-pg'; export default pg.configs.reco...

Chapter 5: The Exam Engine This chapter is the most crucial core of the entire LMS system. At this stage, Academic Suite no longer just manages static data, bu...

Introduction Have you ever dealt with a list within a list and found yourself writing messy nested foreach loops just to get to the data? In C, the .SelectMany...

'SiteOps – A Local‑First Website Monitoring Dashboard Built by a developer who needed more than a simple bookmark manager.

If 2024 was about scaling cloud faster, 2025 was about making cloud make sense. AWS didn’t just launch new services — it refined how developers, DevOps engineer...

Introduction Some time ago I wrote an article explaining the value of orchestrating multiple Feature Requirement Documents FRDs to keep full control over build...

What if emotional manipulation in UX had a runtime detector? EIOC Emotion–Information–Options–Context started as an explanatory lens—a way to analyze why certai...

Introduction As we approach 2026, I realized something annoying: most “Free QR Code Generators” are still stuck in the past. They let you create a code, but af...

It’s Day 8 of 12 Days of Svelte Apps 🎄 Holiday cooking is fun… right up until the recipe switches units on you. - cups vs milliliters - ounces vs grams - Fahre...

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!Cover image for Beyond FFI: Zero-Copy IPC with Rust and Lock‑Free Ring‑Buffershttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,...

The Challenge for Security Service Providers Security service providers operating in today's digital environment confront unprecedented obstacles as they manag...

Overview It’s Day 7 of the 12 Days of Svelte Apps 🎄 – a tiny holiday habit that takes less than a minute. Pick one word you heard today and look it up. It cou...

Author: Chaithanya Chowdhary Enugu Date: December 31 2025 Level: Advanced Most homelab guides take shortcuts: they use Docker bridge networks hiding everything...