Create a Sysadmin account
The first account created will be Sysadmin and allow you to continue configuring your instance.
Sysadmin panel: Server tab
In this first tab, you can configure various settings for your instance.
Sysadmin panel: Teams tab
Edit default team name
Sysadmin panel: Email tab
Configure sending email with an SMTP server.
Authentication
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Storage
To store uploaded files, you have several options: