Workspace/Building blocks
EARLY PREVIEW System design reference Y
THE COMPONENT LIBRARY

Open the black boxes.

Explore the small mechanisms behind large systems.
Each lesson is a miniature experiment you can control.

THE URL SHORTENER COLLECTION 5 connected lessons
01
Fundamentals

Clients & traffic

Every system starts with a request.

Look inside · Experiment
02
Networking

Load balancer

Give every request a healthy destination.

Look inside · Experiment
03
Compute

API service

A little work, thousands of times a second.

Look inside · Experiment
04
Performance

Redis cache

The fastest query is the one you skip.

Look inside · Experiment
05
Data

PostgreSQL

Your source of truth has a capacity limit.

Look inside · Experiment

Now connect the pieces.

See these same components working together in a complete architecture.

Open playground