Blog
Guides, tutorials, and deep dives on developer tools and workflows.
How to schedule cron jobs on AWS: EventBridge vs Lambda vs ECS
AWS gives you three ways to run a task on a schedule. This guide explains the trade-offs between EventBridge Scheduler, Lambda triggers, and ECS Scheduled Tasks.
Read → 6 min readRegex for email validation: why it's harder than you think
Email validation with regex is famously tricky. We walk through the most common patterns, explain why the RFC 5322 spec makes perfect validation impossible, and show you what actually works in production.
Read → 5 min readJSON vs YAML vs TOML: choosing the right config format
Three config formats, three different philosophies. We compare JSON, YAML, and TOML with real examples from Docker, Kubernetes, GitHub Actions, and Cargo — so you can pick the right one for your project.
Read → 6 min readUnderstanding JWTs: what's actually inside your auth token
JWTs are everywhere in modern authentication, but most developers have never looked inside one. We decode a real token step by step and explain what each part does — and what it doesn't.
Read → 7 min read10 cron mistakes that will wake you up at 3am
Cron is simple until it isn't. These are the most common cron job failures — timezone confusion, PATH issues, overlapping executions, and silent failures — with fixes for each.
Read → 7 min read