Topics include:

0:00 – Livable code with Ember3:09 – Speeding up Ember builds, and bugs with React rebuilds7:09 – Undoing bad abstractions11:30 – Building a mobile nav with React Spring + Reach Modal18:48 – Documentation: Guides vs. How-tos vs. Examples34:40 – Composability, and awareness of React's children vs. Ember's yield38:30 – Structural vs. reusable components54:54 – UI Testing1:03:04 – Does advice for building good libraries transfer to buiding good apps?

Links:

What nobody tells you about documentation, by Daniele ProcidaReact SpringUsing Composition in React to Avoid "Prop Drilling", by Michael JacksonMirage and Cypress Quickstart