ES Dev Server

ES Dev Server (version 2.1.0, though the project itself has seen its main development move to a new name) is a development server designed for modern web applications that leverage native ES modules directly in the browser, thereby eliminating the need for a separate bundling step during development. It offers features like efficient browser caching for fast reloads, on-demand code transformation for older browser compatibility, resolution of bare module imports (`--node-resolve`), and automatic browser reloading on file changes (`--watch`). Its key differentiator lies in promoting a "no-build" development workflow. While it remains functional and receives bug fixes, new development and active feature work have moved to its successor, `@web/dev-server`. Users are generally advised to use `@web/dev-server` for new projects and consider migrating existing ones.