Discover how to build full-featured marketing automation using Next.js and Customer.io in this comprehensive video tutorial. Learn from Joel Hooks as he shares his expertise in creating automated marketing systems for popular developer education sites. Explore topics such as working with root pages versus subdirectories, refactoring code, implementing automation, checking customer status, and addressing potential issues. Gain insights on working with visible source code, security considerations, and determining the right time to invest in paid automation tools. Access a demo project and GitHub repository to follow along, and benefit from additional resources and links to enhance your understanding of marketing automation techniques.