• Create a database and a user with permissions to access it, and import the necessary database table by running the SQL in structure.sql
• Create a config.inc.php following the format in config.inc.php.example - you'll be configuring the SQL database and a URL for the StatusPage API and an Authorization header to access it (it should be the components.json API as in the example)
• Upload config.inc.php, cron.php, ServerStatus.php and StatusPage.php to somewhere inaccessible from the web. I put them in the user root in a server_status directory (see the require in ServerStatusPanel.php).
• Update the requires at the top of ServerStatusPanel.php to point to the files where you put them in the step above
• ServerStatusPanel.php should be placed in includes/hooks - it adds panels to the logged-in client's client area for any products/services they have on services which aren't in "operational" state
• Add a cronjob to run cron.php as and when desired - for example you might want it to run every half hour, which you can set up in cPanel, with command php /path/to/cron.php