Can v0 be used for more than prototypes?

The boundary between a quick start and a product that must be maintained.

I use it for prototypes and interfaces when validating an idea quickly matters more than perfect first-pass code.

What works in practice

• Decide what should survive the prototype.
• Inspect dependencies and component structure.
• Separate data and business logic from visual iteration.
• Do not carry temporary decisions into production by inertia.

Where the boundary is

A prototype becomes a product not when it looks polished, but when data, failure states, and maintenance matter.