Design a Component / Instance Model

Problem

Design a component/instance model: components are like classes, instances inherit and can override.

Requirements

• A component defines properties and children
• Instances reference a component and override props
• Editing the main component propagates to instances
• Detach an instance

What evaluators look for

• Inheritance/override model (instance overrides win)
• Change propagation from main to instances
• Clean separation of definition vs instance

Extension

Support nested components and variant sets.