... )
Admin Username: admin
Admin Password: change_this
from any PC on your Local Network.
Then setup your "SMTP Server" details from the Email option. This will help in flow of all emails from the system.
Then setup up your Users Accounts.
All other features can be explored at your leisure.
Once setup & running, please ensure that a Backup of the system, is taken regularly, to avoid any issues.
These are covered in the video. Google Search helps in finding more about flarum.