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Deep Dive Premium Mar 8, 2026

Real-World Engineering Challenges: Building Cursor

How a small team built one of the fastest-growing developer tools — architecture decisions, scaling challenges, and lessons learned.

Cursor went from 0 to 1M+ developers in under 18 months. The engineering challenges behind that growth are unlike anything most teams face — interactive AI latency, codebase indexing at scale, and the product tension between autonomy and trust. We spoke with engineers who built the core systems.

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