Client–Server Model (Who Does What, Really?)
A calm, first-principles explanation of the client–server model, focusing on responsibility boundaries in distributed systems.
Vivek Molkar
Stateless vs Stateful Systems (Why Memory Changes Everything)
A first-principles explanation of stateless and stateful systems, and how memory impacts scaling, failures, and reliability.
Single Point of Failure (How One Small Thing Can Bring Everything Down)
A first-principles explanation of single points of failure using simple, intuitive examples and diagrams.
Horizontal vs Vertical Scaling (Growing Out vs Growing Up)
A first-principles explanation of horizontal and vertical scaling using simple, intuitive analogies.
Scalability vs Performance (Why Faster Isn’t Always Bigger)
A first-principles explanation of scalability vs performance using a simple coffee machine analogy.
Latency vs Throughput (Why Fast Systems Still Feel Slow)
A first-principles explanation of latency and throughput using simple analogies and diagrams.
What Is System Design? (First Principles)
A calm, first-principles explanation of system design using simple analogies and diagrams.
Implementing Rate Limiting in Express
Learn how to implement rate limiting in Express to protect your APIs from abuse and ensure fair usage.
How to Work with Cookies in Express
Learn how to work with cookies in Express to manage user sessions and store data in a web application.
How to Implement Session Management in Express
Learn how to implement session management in Express to handle user sessions and enhance security.