The YouTube video discusses the concept of the Jamstack, which is a term used to describe a web development stack that is separate from the back end. The Jamstack is divided into two parts: the part that can be separated completely and doesn't need to be server rendered, and the parts that are connected through an API layer. This allows the back end teams never have to know about the migration or switch of development frameworks, allowing for a clean and autonomous separation of concerns.
JLengstorf argues that the most important thing for becoming a good engineer is learning how to "craft" the skills rather than relying on shortcuts or tooling. He feels that this is a skill that can be learned over time, but is not something that can be learned overnight.
The YouTube video discusses the JamStack, a collection of technologies that allow for modular composability of web applications. JLengstorf talks about how the modular mindset has taken over in web development and how serverless functions have helped to drive this change. He also mentioned Cloudflare Workers as a potential replacement for Lambda.