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Building LetsGit.IT with an LLM: Quiz Fairness
How we fixed a surprisingly common quiz bug: users could guess the correct answer just by picking the longest option.
Building a Real-Time Canvas Demo: Load Balancer Flow
A practical Canvas API showcase that visualizes a load balancer distributing traffic to app servers.
System Design Simulator: Uber-like Architecture Walkthrough
A behind-the-scenes look at the new System Design Simulator: how decisions shape the diagram, metrics, and tradeoffs.
Building the System Design Simulator with Codex CLI
An end-to-end account of building the System Design Simulator with Codex CLI, covering data modeling, diagrams, scoring, and feedback.
Mastering React Hooks in 2025
A deep dive into the latest patterns and best practices for using React Hooks in high-performance applications.
System Design Interview: From Zero to Hero
Learn how to approach complex system design problems and communicate your architecture decisions effectively.
What's New in Next.js 16
Exploring the standout features of the latest Next.js release, from faster dev server to stricter routing defaults.