This repository is a React library that provides components and hooks for integrating the Kakao (formerly Daum) postcode service into React applications. It offers two primary interfaces: a embeddable component (`KakaoPostcodeEmbed`) that renders the postcode search UI directly in the page, and a custom hook (`useKakaoPostcodePopup`) that returns a function to open the service in a popup window. The library handles asynchronous loading of the Kakao postcode script, manages the service lifecycle via callbacks, and provides TypeScript definitions for the address data returned by the service. The core functionality revolves around dynamically loading the external Kakao postcode script and initializing it with user-provided options.