Ruby on the Server

After perusing the course list, I have noticed an intro to this book. Are we going to see the Ruby on the Server book published. Even in an online format only?

We don’t currently have plans to publish the book in the near term. We do have a class coming up on at the end of April 2017.

I know this topic (and probably the book content) is a bit dated but I also found an intro to this book and would be interesting in reading more about it (it’s BNR’s fault for publishing good books)… is there any chance that the book could become available or that there’s any plan to bring back a ruby course?