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Local to Production: Scaling Systems

The Database Problem4

Scaling the App Layer4

Caching for Speed4

What caching actually is
Cache invalidation and the standard caching patterns
Redis and in-memory data stores
CDNs and caching close to the user

Async Work & Scheduling4

Putting It All Together4

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Local to Production: Scaling Systems

The Database Problem4

Scaling the App Layer4

Caching for Speed4

What caching actually is
Cache invalidation and the standard caching patterns
Redis and in-memory data stores
CDNs and caching close to the user

Async Work & Scheduling4

Putting It All Together4

Learn Local to Production: Scaling Systems Caching for Speed

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Cache invalidation and the standard caching patterns

The genuinely hard problem in caching: knowing when a cached answer has gone stale, and the standard patterns for handling it.

10 min readUpdated 2026-09-04cachingperformancescaling