A custom React hook that manages localStorage persistence with debounced writes to prevent excessive storage operations. It provides saveBackup and deleteBackup functions, and automatically loads existing backup on initialization. This isolated hook can be extracted and reused in any React project needing to persist state to localStorage with performance considerations.

A self-contained React component that displays raw text in a read-only textarea and provides a copy-to-clipboard button with visual feedback. It handles the Clipboard API with a fallback for older browsers using document.execCommand, and shows a temporary success message after copying. This component is isolated and can be reused in any project requiring text display and copy functionality.