Thanks!

which CSS-in-JS solution do you each prefer? I know next.js comes with you own styled-jsx , but do you have thoughts on glamour and styled-components ?

What are some of the most unique and interesting redux middleware you've seen?

The question was "should", not "must", and that's an important distinction. If you have an understanding of your build pipeline, module management / creation, and tooling, you'll be a better developer.