This document discusses developer experience (DX) and how to design for it. It begins with introductions of the presenters and defines DX as the experience developers have when using a product. It then discusses understanding developer pain points and personas, designing the developer journey, and using different interfaces like APIs, portals, and CLIs. The document outlines challenges in the design process like getting buy-in and measuring DX metrics. It argues that improving DX benefits business goals like enabling experiments, increasing flexibility, and attracting talent. It concludes that developers are also users and designers, and that DX is important to consider for business reasons.