Build App: Full-stack JavaScript Build System

Build App is a comprehensive full-stack JavaScript application build system, currently stable at version 0.9.8. It operates primarily as a command-line interface (CLI) tool, `app-scripts`, orchestrating development tasks for both client and server components. Inspired by client-side build tools like Facebook's create-react-app, it extends similar 'out-of-the-box' facilities to full-stack development, simplifying build, development server, linting, and project initialization. While there isn't a stated release cadence, its pre-1.0 versioning suggests a focus on stability and functionality rather than rapid feature iteration. Key differentiators include its opinionated project structure, support for multiple client frameworks (React, Angular, Vue) by integrating with their respective build systems, and compilation of both JavaScript and TypeScript server code to ES5 for broader compatibility. It is OS-agnostic and aims to streamline the setup and development of modern full-stack applications through starter templates.