The talk videos cover various aspects of GraphQL development and deployment, including real-world usage stories from companies like Coursera and Samsara. Jon Wong shares strategies for layering GraphQL on top of REST APIs, while Sashko Stubailo presents a solution for deploying stateless GraphQL APIs using AWS Lambda and Apollo Engine. John Haytko explores client-side caching with Apollo Link, and Christopher Biscardi discusses the use of the GraphQL SDL to decouple client and server implementations. Stephen Wan talks about the benefits of end-to-end type systems, using tools like Thunder and apollo-codegen to automate development processes. The meetup aims to share knowledge and best practices for using GraphQL in production environments.