Yew is a library to help make it easier to write interactive UI with Unity's UI Toolkit. If you like React for Web/native, you just might like Yew.
This, still super experimental, release supports UseCoroutine. You can look in the README for an example of how to use it do animation-y things. Also some node update optimizations, such as only updating once in a given frame, even if multiple state changes individually trigger updates.
There is also an Image Primitive now.
this is super experimental!