7 posts in Backend Development
Passkeys are replacing passwords as the default authentication mechanism in 2026. This guide covers the WebAuthn Level 3 specification, passkey synchronization, enrollment and recovery UX, production-ready implementation with SimpleWebAuthn, and common mistakes to avoid.
DNS is infrastructure every developer uses but few understand well enough to debug. This guide covers the resolution chain, every record type, TTL strategy, split-horizon DNS, and a systematic debugging approach.
LLM API costs scale with token usage, and unoptimized prompts can make costs 5-10x higher than necessary. This guide covers prompt engineering for efficiency, caching strategies, model routing, and the trade-offs of each approach.
I share my comprehensive Docker guide for web development covering installation, best practices, multi-stage builds, security, and production deployment strategies.
I share my practical guide to implementing database sharding for growing SaaS applications, covering PostgreSQL strategies for data distribution, query routing, and migration.
Learn how to create a real-time dashboard using WebSockets with Node.js and Socket.io. This step-by-step guide covers setup, implementation, and deployment for building interactive applications.
Explore the benefits and drawbacks of Rust and Node.js backends for static webpages, including migration steps and a tutorial for transitioning from Node.js to Rust.