
You can use this template when you're starting a new project by using Node.js, Express, and Mongoose. It contains general concepts, you can customize it according to your needs.

Express.js is a simple Node.js framework for single, multi-page, and hybrid web applications.
A fullstack boilerplate provides a starter application that includes both frontend and backend. It should include database, auth, payments, user roles and other backend services to build a fully featured saas or webapps.
A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.