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⚡ AI Lessons

Dev.to · Parsa Jiravand
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Stop using the localStorage hack to sync browser tabs. BroadcastChannel does it natively.
Syncing state across browser tabs with localStorage events is a widely-used trick that requires JSON.stringify, event filtering, and careful cleanup. The Broadc

Dev.to · RUSEGAL
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Writing terabytes to disk in Go: Stopping the OS Page Cache from eating all your RAM (FADV_DONTNEED)
Hello everyone! This is the second article about the development of RUSEON-core, a Zero-Copy video...

Dev.to · Meiglyph
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Why I Kept My CLI Tool's Tags as Plain Text
Keeping Tags as Plain Text — Adding Features to brain-cli Without Losing the Point ...

Dev.to · Simon Green
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Weekly Challenge: Uncommon parentheses
Weekly Challenge 385 Each week Mohammad S. Anwar sends out The Weekly Challenge, a chance...

Dev.to · Gouranga Das Samrat
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Rate Limiting
One-liner: Rate limiting controls how many requests a client can make in a given time window —...

Dev.to · oji - building AI in public
🔧 Backend Engineering
⚡ AI Lesson
1d ago
My Build Was Stuck: A 700-Second API Fetch Timeout in a 600-Second Environment. Here's How I Fixed It with a Self-Healing Cache.
Hey everyone, it's your friendly neighborhood old man dev here. I'm 38, working as an engineer during...

Dev.to · Matias Panguilto
🔧 Backend Engineering
⚡ AI Lesson
1d ago
How I Built Browser-Based Tools Without Sending User Data to a Server
When building small online utilities, one question comes up surprisingly often: Does the user's data...

Dev.to · Akash Gupta
🔧 Backend Engineering
⚡ AI Lesson
1d ago
I built a full backend-learning platform solo — here's what I shipped (and what broke along the way)
A few months ago I got tired of the same problem: you finish a "backend course," feel great for a...

Dev.to · Juma Evans
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Caching: How Backend Systems Get Faster with Redis
Analogy Imagine you have built a backend API that works perfectly. You deploy it. Users...

Dev.to · Seif Ahmed
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Building a Bulletproof Comment Reply System in Node.js & MongoDB 🚀
When building a nested reply system, most developers worry about deep tree complexity or messy data...

Dev.to · Roberto Luna
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Caching PrismaClient as a Singleton to Stop Neon Connection Exhaustion
Caching PrismaClient as a Singleton to Stop Neon Connection Exhaustion TL;DR: I added a...

Dev.to · Peace Melodi
🔧 Backend Engineering
⚡ AI Lesson
1d ago
I Created a NestJS Delivery Dispatch Backend with Concurrency Control & Dockerized Postgres
I built this delivery dispatch service to practice and master core backend engineering fundamentals...

Dev.to · Dalmas Ogembo
🔧 Backend Engineering
⚡ AI Lesson
1d ago
umbral - declare your data in Rust, get migrations, an admin, and a REST API for free
The reason Django, Rails, and Laravel made people productive was never the language. It was the deal...

Dev.to · Palak Hirave
🔧 Backend Engineering
⚡ AI Lesson
1d ago
Day 24 of 100
Today I learnt all about files, paths and directories. I learnt what a relative and absolute file...

Dev.to · Parsa Jiravand
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Stop importing `uuid`. `crypto.randomUUID()` has been native since 2021.
The `uuid` package is downloaded hundreds of millions of times a week. Most installs exist to call uuid/v4 — exactly what `crypto.randomUUID()` does natively, w

Dev.to · Ahmed Mahmoud
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Node.js Has a Test Runner Now: Field Notes on Dropping Jest for Scripts and Libraries
Headline: Node.js ships a built-in test runner — node --test executes node:test files with no Jest,...

Dev.to · Suman Naskar
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Spring Boot For Beginner
🚀 Building a REST API with Java Spring Boot: A Practical Beginner’s Guide If you're coming...

Dev.to · Ayush Shrivastava
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Java Spring Boot Logging: Log Levels, Logback, JSON Logs & Production Best Practices
Production-Grade Logging in Spring Boot: A Complete Guide to Logging Levels, Files, JSON...

Dev.to · Eyvind Barthelemy
🔧 Backend Engineering
⚡ AI Lesson
2d ago
The RPC said Base was healthy. The first contract read still failed.
This is a submission for DEV's Summer Bug Smash: Clear the Lineup powered by Sentry. ...

Dev.to · Ashitosh Lavhate
🔧 Backend Engineering
⚡ AI Lesson
2d ago
I Deployed My Backend to Render… and Then Everything Broke 💀
I Deployed My Django App to Render… and Then Everything Broke 💀 Deploying an application...

Dev.to · tosane932
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Existing DB Works, Empty DB Fails — Repairing a Broken Flask-Migrate History
A detailed Flask-Migrate and Alembic debugging record: why an existing PostgreSQL database worked while a fresh database failed, how I repaired the missing init

Dev.to · Multigrid
🔧 Backend Engineering
⚡ AI Lesson
2d ago
HTML Extraction and Boilerplate Removal
Getting the article out of the page, why the naive approach costs you tokens on every request, and the arithmetic of what removal is worth.

Dev.to · Rogério Maciel
🔧 Backend Engineering
⚡ AI Lesson
2d ago
De workflows visuais a código nativo em produção: a jornada completa de um backend n8n
Vou contar essa história na ordem que aconteceu. Não começa com um compilador. Começa com dois...

Dev.to · Yousif Abdulkarim
🔧 Backend Engineering
⚡ AI Lesson
2d ago
Announcing eridu-tech - A Modular Backend Platform for TypeScript
Announcing eridu-tech eridu-tech is a framework-agnostic backend platform for TypeScript:...
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