How it works...

The Odoo start command is a shortcut to start a server instance using the current directory. The directory name is automatically used as the database name (for the -d option), and the current directory is automatically added to the addons path
(the --addons-path option), as long as it contains an Odoo addon module. In the preceding recipe, you won't see the current directory in the addons path because it doesn't contain any modules yet.