Five minutes a lesson.
Each lesson boiled down to swipeable cards: the key ideas, the numbers to remember, one trade-off table, the classic mistakes and what to say when the interviewer asks. Flip a whole world the night before. Save it offline and it works on the flight.
66 lessons · 604 cards · cards you mark "again" join your Daily standup- World 00
Foundations
6 lessons · 56 cards · ~30 min - World 01
Data at Scale
6 lessons · 53 cards · ~30 min - World 02
Failure-First Design
6 lessons · 53 cards · ~30 min - World 03
Messaging and Async Processing
6 lessons · 52 cards · ~30 min - World 04
Caching
6 lessons · 52 cards · ~30 min - World 05
Consistency and Coordination
6 lessons · 52 cards · ~30 min - World 06
Designing a Notification Platform
6 lessons · 54 cards · ~30 min - World 07
Designing a Search System
6 lessons · 59 cards · ~30 min - World 08
Designing an Analytics Pipeline
6 lessons · 60 cards · ~30 min - World 09
Multi-tenancy and Security
6 lessons · 55 cards · ~30 min - World 10
Production Readiness and Operational Excellence
6 lessons · 58 cards · ~30 min