I’m not particularly interested in the cross-platform/React aspects of this (although they’re impressive too!). But I’m quite interested in the way it optimizes styles! I hacked something similar together with Fela and an early partial hydration solution, emphasis on hacked. And the DX of my solution is great… until there are a lot of styles, and then builds slow to a crawl. I’m looking forward to giving this a try, and digging into the source to see how it’s done.