Currently, we have one main user, also called default user, or admin. All the others are regular users.
The default user is the first created user within the install routine.
The default user is always an administrator.
It is impossible to demote or disable the user.
The default user is used for the anonymous reading.
How to enable the anonymous reading mode:
Administration → AuthenticationAllow anonymous reading of the default user’s articlesThere is no UI for changing the default user, but a CLI (./cli/reconfigure.php --default_user YourNewAdmin) is provided. It can also be changed manually by editing the text file ./FreshRSS/data/config.php and changing 'default_user' => 'alice', to the desired user.