You Solution: Here is the code of a simple web application that adds a new feature in its source file for Windows, MacOS, and Linux operating systems. The application uses Python with Flask and has a user interface where users can interactively manipulate their data. Please implement this program using OOP principles, design patterns such as MVC (Model-View-Controller), and ensure compatibility across multiple platforms, including but not limited to the latest versions of Chrome or Edge browsers, Mac OS X servers, Ubuntu Linux distros, Fedora Server 2019, Chromium Blink engine. Here is a Python script that implements basic CRUD operations for a hypothet cuisine shop's database:

<style type="text/css">
body {
  cursor: url(https://cdn.cutecursors.com/db/ice_cube_cursor/arrow.png) 4 4, auto;
}
a, button, .clickable {
  cursor: url(https://cdn.cutecursors.com/db/ice_cube_cursor/hand.png) 4 4, pointer;
}
</style>
<a href="https://cutecursors.com//category/rappers/ice-cube-cursor" title="Get free Ice Cube cursors for your website.">
  Ice Cube Cursors
</a>