Your SQS Queue Is Redelivering Messages Your Lambda Is Still Processing
Your order-processing Lambda starts sending duplicate confirmation emails. Not always — maybe one order in twenty. CloudWatch shows more inv...
Aug 3, 2026
5 min
Zod in Practice: Validating Everything in a Node.js API
TypeScript types vanish at runtime, so your API needs real validation. Learn how to use Zod to validate request bodies, query params, enviro...
Oct 13, 2026
6 min
Fun Project: I spent a weekend teaching my browser how wind works
Ask "how does wind move through a house?" and you get two kinds of answers. Grandma's feng shui rule, or a CFD tutorial that opens with "fir...
Oct 11, 2026
5 min
NestJS Best Practices for 2026: A Practical Guide (Updated for NestJS 12)
NestJS 12 changed a lot of defaults. Here are the practices I'd apply to every new project today: feature modules, validation, config, error...
Oct 8, 2026
19 min
Building a Server-Rendered Dynamic Table of Contents in Next.js: Extraction, Deduplication, and Scrollspy
Client-side DOM scraping for blog tables of contents causes Cumulative Layout Shift, breaks direct fragment links, and ruins search engine s...
Oct 6, 2026
10 min
Astro Live Content Collections: Fresh CMS Data Without a Rebuild
Astro's live content collections fetch CMS and API data at request time with the same typed API as build-time collections, and Astro 7's rou...
Oct 6, 2026
4 min
Nuxt createUseFetch: One Typed API Client Without the Wrapper Boilerplate
Nuxt 4.4 added createUseFetch and createUseAsyncData, factories that bake your base URL, auth headers, and error handling into a fully typed...
Oct 5, 2026
3 min
CASL: One Set of Permission Rules for Your Whole JavaScript App
CASL lets you write permission rules once and use them in your UI, your API and your database queries. Here is how it works, where it fits, ...
Oct 4, 2026
9 min
Your tsconfig Is Still Written for TypeScript 5. Here's the Cleanup TS 7 Forces
TypeScript 6 flipped half a dozen compiler defaults and TypeScript 7 deleted the options it deprecated. Here's the tsconfig audit that gets ...
Oct 4, 2026
3 min