Building Production-Ready Apps: Why Your Component Architecture Matters

Most applications do not slow down because of the framework. They slow down because every screen invents its own primitives.

Composition over configuration

A component with fourteen boolean props is a small framework with no documentation. Smaller pieces that compose beat one piece that anticipates.

// Anticipates every case, documents none of them
<Card withHeader withFooter dense bordered elevated />

// Composes, and reads as what it renders
<Card>
  <Card.Header>...</Card.Header>
  <Card.Body>...</Card.Body>
</Card>

Add an abstraction on the second use, not the first. Speculative flexibility is the most expensive kind, because it has to be maintained before it has earned anything.

Keeping the boundary honest

• Render on the server by default; a client boundary is a decision, not a habit.
• Push interactivity to the smallest leaf that needs it rather than the nearest ancestor.
• Keep data shapes in one place so a field rename is one edit, not a search.

If a component cannot be described in one sentence, it is doing two jobs.