The first thing is create a directory to hold your plugin so that all of your plugin’s files are neatly organized in one place.
Go to apps directory under business suite root directory and create a folder with name notes. In this folder we will put all our files for this plugin.
Create a new PHP file with name manifest.php with following contents-
<?php
$plugin = [
    'name' => 'Notes',
    'author' => 'Your Name',
    'version' => '1.0.0',
    'description' => 'A simple note taking app',
    'url' => 'https://www.cloudonex.com', # You can put your own website url
    'priority' => 1,
    'build' => 1000 # Build number if you want to use automatic updates to compare version
];
Understand it visually, how it will look like in the List plugins in your Business suite-
