Development

The production webhook checklist every tutorial skips (with a TypeScript example)

Most webhook tutorials stop at app.post('/webhook', ...), log the payload, and call it a day. That …

The Unix Timestamp, Demystified (and the 1000 Bug That Bites Everyone)

A Unix timestamp is one of the most common things in software and one of the most quietly misunderst…

The Tooltip Problem: A Little Box That Never Falls Off Screen

A tooltip sounds like the simplest UI component there is. Then you put a button in the top-right cor…

n8n Code Node: Advanced Patterns — Multi-Language, Loops, and Error Handling (Free Workflow JSON)

When you're building workflows with n8n, the Code node is your workhorse for custom logic — but most…

Building a Food Blog Platform with Django — Day by Day

Today's development session was all about improving the quality of the project rather than adding fl…

Build a YAML ↔ JSON Converter in Vanilla JS (Browser-Only)

Converting between YAML and JSON is a daily task for developers working with configs, APIs, and CI p…

28. PostgreSQL

BootCamp by Dr.Angela 1. Introduction to PostgreSQL Powerful, open-source relational database sy…

Why Every Python Developer Should Have an SEO Toolkit in 2026

Most Python developers I know have never thought about SEO. They build things, ship things, and then…

Search Every SEC Filing by Keyword With the Keyless EDGAR Full Text API

If you have ever wanted to find every SEC filing that mentions a phrase, a person, or a legal term, …

Build a Markdown to HTML Converter with Syntax Highlighting

A browser-only Markdown-to-HTML converter with live preview, syntax highlighting, and HTML sanitizat…

Build a Text Line Sorter with Sort, Dedup, Filter & Replace

Sorting and transforming text lines is a surprisingly common task. I built a browser-only tool cover…

Nearly 20 Tools Give Safari MCP Server Its AI Edge

Apple’s Safari MCP server gives AI coding agents live browser evidence to debug WebKit faster. …