Explore offline app development using web components in this 32-minute conference talk from WeAreDevelopers World Congress 2018. Follow along as Amahdy Abdelaziz demonstrates live coding techniques for manipulating large datasets entirely offline. Learn about design concepts, cross-platform tools, offline-first design principles, and the advantages of web components. Discover how to implement caching, offline storage, and PouchDB to create an always-on user experience. Gain insights into the challenges and design considerations for building robust offline applications.