Lightning Design System VS Reakit

LWC is supposed to be their approach to play nice with web standards and appeal to a broader group, and "web components" without the lightning niche specific stuff can get you close especially if you use https://lightningdesignsystem.com for your off-platform-hosted page and web components. Source: about 1 year ago

This is a bit more of a broad topic than your original question but the lightningdesignsystem.com website is always a good resource for various specifics on styling and SLDS (aura). Source: over 2 years ago

As a tech lead (or whoever makes the technical decision), it looks very tempting to adopt the open source UI libraries, if possible. In the React.js land, I used a bit of Charkra UI and Reakit. Source: over 1 year ago

I'm currently considering React-aria, HeadlessUI, Radix-ui and Reakit for reimplementing the user-interface for a customer, but I find it hard to choose. Source: almost 2 years ago

I’ve got some libraries I’m looking into to fill the gap. Currently looking at radix, reakit, and react-spectrum. Source: about 2 years ago

Regardless of what you use for styling though, you should look into so-called headless ui components. These are hooks and components only focused on functionality and accessibility, which you then use to build your own styled components. Some examples are https://reakit.io/, https://www.downshift-js.com/ and https://headlessui.dev/. Source: almost 3 years ago

For common components, I can't recommend Reakit enough. It's a keyboard accessible, unstyled component library with dialogs, popovers, and much more. I use it for all of my personal projects nowadays. Combined with Framer Motion for animation and Styled Components for styling, it's a killer mix. - Source: dev.to / almost 3 years ago