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Local to Production: Scaling Systems

The Database Problem4

Scaling the App Layer4

Statelessness and why it matters
Load balancers
Auto-scaling and when to actually add servers
Horizontal scaling in practice

Caching for Speed4

Async Work & Scheduling4

Putting It All Together4

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Local to Production: Scaling Systems

The Database Problem4

Scaling the App Layer4

Statelessness and why it matters
Load balancers
Auto-scaling and when to actually add servers
Horizontal scaling in practice

Caching for Speed4

Async Work & Scheduling4

Putting It All Together4

Learn Local to Production: Scaling Systems Scaling the App Layer

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Statelessness and why it matters

The one design property that decides whether you can ever run more than one copy of your app server.

9 min readUpdated 2026-09-04scalingarchitectureservers