Once your story is ready, you can publish it directly from the editor. Click on "Publish" in the editor sidebar:

Editor sidebar with arrow pointing to the Publish button

In the publish dialog, choose how long your story should be published. You need to select one of the available options before the "Publish" button becomes active:

Publish dialog with publication duration options highlighted

Indefinitely – Your story stays published until you manually depublish it.

Until including – Your story is automatically depublished after the specified date and time.

After selecting a duration, click the "Publish" button. Pageflow creates a snapshot of your current story that becomes publicly visible. You can continue editing your story in the editor without affecting what readers see. See Can I keep working on my story after I published it? for more details.

The publish dialog also offers additional options: