How Databases Actually Store Data Internally
Pages, B-trees, buffer pools, and what every developer should know
Search across 274 posts, 23 explainers, and 89 topics
How to Run Your Own AI Agent with Cloudflare Moltworker
OpenClaw setup, gateway architecture, and serverless deployment for developers
Django PostgreSQL Setup: From Zero to Production
Connect Django to PostgreSQL, run migrations, and get it ready for production
How Netflix Video Processing Pipeline Works
Inside the architecture that encodes 17,000+ titles for 280 million viewers
Kubernetes Cheat Sheet: Essential kubectl Commands for Developers
The practical reference guide to managing containers, pods, and clusters
How OpenAI Scales PostgreSQL to 800 Million Users
Practical database scaling lessons from the team behind ChatGPT
System Design Cheat Sheet: Concepts Every Developer Should Know
The practical reference guide for building scalable, reliable systems
How OAuth 2.0 Works: Authorization Flows, Tokens, and PKCE
How modern apps access your data without seeing your password
How Google Docs Works Behind the Scenes
How Google Docs syncs edits from millions of users typing at the same time without losing a single character
Skip List Data Structure: A Faster Alternative to Trees
How Redis, LevelDB, and modern databases achieve O(log n) search without complex tree balancing
Getting the Most Out of AI Coding Assistants
Practical lessons from developers who actually use GitHub Copilot, Cursor, and other AI tools daily
How Meta Handles Millions of Serverless Function Calls Per Second
Inside XFaaS: The platform processing trillions of function calls daily across 100,000+ servers
X Algorithm Explained: How the Open Source Recommendation System Works
A detailed explanation of X's open source algorithm from the GitHub repository — how the recommendation system works, from candidate sourcing to Grok-based ranking
How Does an LLM Generate Text?
What actually happens inside GPT, Claude, and Llama when you hit enter
Complete Guide to Graph Data Structure: BFS, DFS, Adjacency List vs Matrix
Graph fundamentals with BFS and DFS time complexity explained: O(V+E) with adjacency list, O(V²) with adjacency matrix, plus 20+ algorithms with code.
B-Tree Data Structure: How Databases Search Billions of Records
How databases and file systems store billions of records and find any one of them in milliseconds
How HyperLogLog Works
Count billions of unique items using only 12 KB of memory
