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Notes from the engineering team

What we learn building product: architecture, performance, security and the decisions that pay off later.

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Performance6 min read

Core Web Vitals in Next.js: what to measure and what to ignore

LCP, CLS and INP explained without the hype, plus the three causes behind most production failures.

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Recent articles

Architecture7 min read

Multi-tenant from day one: the decisions you cannot undo

Data isolation, foreign keys and migrations: why bolting on multi-tenancy later costs ten times more.

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Mobile5 min read

Offline-first is not a feature: it is an architecture

How to design an idempotent write queue so an app keeps working when the network drops.

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