yogendra-chouhan-2003/mern-info ? reverse-engineered prompt

Build me a simple MERN learning hub where I can keep all my project notes, examples, and practice work in one place.

I want a clean homepage with cards or sections for JavaScript, Express, React, Mongoose, REST API, Sequelize, and assignments or mini projects. Each section should open to a page that shows notes, small code examples, and links or summaries for the topic. It should feel easy to browse and use, like a personal study dashboard for someone learning full stack development.

Please make it look neat and modern, work well on mobile, and include a way to add or edit items if that fits the app. If you need to check current docs or best practices while building, go ahead and look them up online. Use whatever structure makes sense, but keep it simple and practical so I can expand it later.