The @rushstack/heft-typescript-plugin is a Heft plugin that integrates the TypeScript compiler into a Heft build pipeline. It enables efficient compilation of TypeScript code within a Heft project, leveraging TypeScript's rich type system and modern JavaScript syntax. This plugin streamlines the build process, allowing developers to utilize Heft's features such as task orchestration and incremental builds with TypeScript projects, ensuring robust and reliable software development. It's a crucial component for TypeScript-based projects using the Rush Stack ecosystem.