Webserver running PHP, MySQL. HTTPS access is hightly recommended.
Download latest version on GitHub :
Extract ZIP content in a "qumulus" subfolder of your webserver.
Create a "qumulus" database and a "qumulus" user with all privileges on it.
Edit "/application/config-sample.php" and change theses values:
$config['language']
$config['encryption_key']
$config['base_url']
Save file as "/application/config.php".
Edit "/application/database-sample.php" and change theses values:
$db['default']['hostname']
$db['default']['username']
$db['default']['password']
$db['default']['database']
$db['default']['pconnect'] //Optionnal if you have database disconnections
Save file as "/application/database.php".
Open your webbrowser and navigate to "https://myserver/qumulus".
That's all...
Enjoy !