I have been impressed with the Chakra ui kit and maintainer. The components are very high-quality, with a focus on a11y (important!). It's a single maintainer right now, which always carries some risk, but the rate at which the library is updated and maintained is impressive. I hope to see more widespread support and adoption. With a little love, this could be a better alternative to some of the most popular react component kits out there today.
The Hapi js ecosystem is well documented, well maintained, and battle-tested (came out of Walmart Labs). More opinionated than express, less than a framework like sails or loopback. A great starting point for a web app or api in node.