In your browser
Log in at https://your-organisation-name.collective.tools (replace “your-organisation-name”).
Desktop
Download the Nextcloud app at https://nextcloud.com/install/. Fill in the address to Nextcloud as your server (https://your-organisation-name.collective.tools) and your username and password to log in. More documentation can be found in the Nextcloud Desktop Client Manual.
Mobile
Download the Nextcloud app in the app store for Android or iPhone. Fill in the address to Nextcloud as your server (https://your-organisation-name.collective.tools) and your username and password to log in.