Write.as as a serial content system -> blogs, books, and more

Given the features you have already I wish I could use Write.as to do the following:

  1. Write some chapters for a book I’m working on with Write.as
  2. limit these chapters to be viewed by a list of folks who might have either a role of beta reader, or they have “subscribed” to my book / content
  3. allow those readers to comment on my content
  4. allow those readers to get notifications when I update a chapter / blog post
  5. allow those readers to support me by either a subscription / webmonetization / or tips
  6. output the works as epub, mobi, pdf so I can publish them to Gumroad / Amazon / etc.
  7. easily give beta readers / subscribers credit for helping with the chapters / posts