Yew components, based on PatternFly:

PatternFly is an open source design system built to drive consistency and unify teams.

Yew is a framework for creating reliable and efficient web applications.

Take a look at the demo, which shows various features of the project: https://patternfly-yew.github.io/patternfly-yew-quickstart

The code of the demo is also intended to be a quickstart/template project, to get you started with just a few commands: https://github.com/patternfly-yew/patternfly-yew-quickstart