Agile Web Development with Rails 8 is now in production, where tasks such as editing, indexing, pagination, and printing are performed. The author of the book became dissatisfied with existing content on deployment and production topics by Kamal, so they created their own material which was then incorporated into the book. With spare time, the author published a more comprehensive guide online, utilizing tools like GitHub Copilot to format and proofread the content. This guide aims to fill the gap in existing resources for deploying real projects with Rails 8, covering topics such as Docker ecosystem setup, security measures, and production considerations. The guide is now available on GitHub under an open license, allowing users to contribute and expand upon it.