You Click "Add to Story" and Instagram Does Way More Than You Think
SMRTR summary
Ever wonder what actually happens when you upload an Instagram Story? Behind that single tap lies a chain of backend systems handling authentication, metadata, audience calculation, and permission rules — all in seconds. Building a simulator to model this revealed how features like Close Friends are elegant engineering solutions, and how great software hides massive complexity behind effortless user experiences.
SMRTR provides this summary for quick context. The original article belongs to Dev.to.
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