Passkeys: A WebAuthn Implementation Guide
Passkeys are replacing passwords in 2026. This guide covers WebAuthn Level 3, registration and authentication ceremonies, recovery, and production setup.
Backend Development
7 posts in Backend Development
DNS Deep Dive for Developers: Records, TTLs, and Debugging When Resolution Breaks
DNS is infrastructure every developer uses but few understand well enough to debug.
LLM Token Cost Optimization: Cutting Your API Bills Without Cutting Quality
LLM API costs scale with token usage, and unoptimized prompts can make costs 5-10x higher than necessary.
My Complete Docker Guide for Web Developers
I share my thorough Docker guide for web development covering installation, best practices, multi-stage builds, security, and production deployment...
How I Approach Database Sharding for Growing SaaS Applications
I share my practical guide to implementing database sharding for growing SaaS applications, covering PostgreSQL strategies for data distribution, query routing, and migration.
Building a Real-Time Dashboard with WebSockets: A Full-Stack Guide Using Node.js and Socket.io
Learn how to create a real-time dashboard using WebSockets with Node.js and Socket.io.
Rust vs. Node.js: Comparing Backends for Static Webpages
Examine the benefits and drawbacks of Rust and Node.js backends for static webpages, including migration steps and a tutorial for transitioning from Node.