you are right, a documentation is missing. It was in the summary tab but I didn't manage it over the time.
The installation is really simple:
- make sure you have all the necessary plugins installed (OpenNTF Extlib, OpenNTF API, Bootstrap4XPages)
- copy the template to your local data or server data and sign it with an appropriate ID
- create a new database from the template
- setup ACL for your user(s) incl. the Admin role provided
After logging into the database in your browser you can setup a profile (your ID needs to have the admin role assigned)