I don't often attend or speak at conferences, but there are a few exceptions.
Next.js Conf 2020
This project demonstrates the architecture changes Amplify JS needed to support Next.js, authentication & data-access in a client-side application, and how to move logic to the server for better performance.
Space City JS 2015
How we dismantled our PHP monolith into React components for profit
Houston.js, May 2017
Come and learn tips, tricks, and pitfalls of using community JavaScript libraries, how to decrease build sizes, and that there are more important metrics than GitHub stars.