The "user" command:

Usage: fossil user SUBCOMMAND ... ?-R|--repository REPO?

Run various subcommands on users of the open repository or of the repository identified by the -R or --repository option.

fossil user capabilities USERNAME ?STRING?

Query or set the capabilities for user USERNAME

fossil user contact USERNAME ?CONTACT-INFO?

Query or set contact information for user USERNAME

fossil user default ?USERNAME?

Query or set the default user. The default user is the user for command-line interaction.

fossil user list

fossil user ls

List all users known to the repository

fossil user new ?USERNAME? ?CONTACT-INFO? ?PASSWORD?

Create a new user in the repository. Users can never be deleted. They can be denied all access but they must continue to exist in the database.

fossil user password USERNAME ?PASSWORD?

Change the web access password for a user.