How can I run this application in my local system.Can you explain me the setup process
And is this an opensource? So once I can setup the application, can I deploy it on server and use it for internal purposes and can share within the team.
This is an app for the Nextcloud server only and not a standalone app. Install and use it - thatβs all. The answers on the other questions are YES, YES and YES.
You will find much more information in the Nextcloud manuals