Home page lists projects actively seeking co-authors.
It has a blank document at the top to start your own piece.
And a tab for reading published works.
The Workflow
A solo workflow can be simplified as you just writing in Turns and publishing the Post when it's ready. Collaboratives begin with you publishing Turn 1 right away and prospective co-authors auditioning their versions of Turn 2 as continuations to your story. Choose one of these Turn 2 submitters as your co-author (making the Post private again) and from there the two of you write until it's ready to be published proper. You can also directly invite a specific user as your co-author which skips the audition phase entirely.
Step 1.1: Write the opening
A new work starts with you pouring the first few words of it into a fresh Turn 1 sheet. You can save it as either a solo or a collaborative Post. For collaboratives, save as a draft if it's not ready to receive auditions yet.
Step 1.2: Invite
(for Collaboratives only)
From the Turn 1 sheet, click Invite Authors, fill out some details for prospective co-authors, and choose whether to directly invite someone you know or to open up invitation for anyone willing to collaborate.
Step 2: Find a co-author
(for Open-Invitation path only)
Direct Invitees directly become your co-author. Open-Invitation Posts appear under the Collaborate tab of every user's Home feed, where anyone can improvise their own versions of Turn 2 to your story.
Your Post Dashboard will list auditions (Collab-submissions) from prospective co-authors. Choose one of them as your co-author to share equal rights with them for the rest of this work.
Step 3: Cook and publish
Use Turns however you wish in solo Posts. In collaboratives, choosing a co-author unlocks Turn 2 and the rest. Communicate through Discussions to establish how you wish to navigate Turns and responsibilities. Use Suggestions to suggest edits for or share your ideas on a particular Turn. Exchange Turns using the Claim/Unclaim feature.
Hit Publish when you are ready to share your result with the world.