[Robin]: I still haven’t found myself reaching for Web Components yet and I’m not sure why. I assume because most of my time is spent with either Static Site Generators or very large Single Page Applications written in React. But the idea makes a ton of sense to me, as Caleb Williams describes in An Introduction to Web Components:
The shadow DOM is an encapsulated version of the DOM. This allows authors to effectively isolate DOM fragments from one another, including anything that could be used as a CSS selector and the styles associated with them. Generally, any content inside of the document’s scope is referred to as the light DOM, and anything inside a shadow root is referred to as the shadow DOM.
The GitHub team built components such as the tab-container element and it looks like there’s a great list called github-elements which captures most of them. I’ve been flipping through these and it seems like there’s a ton of stuff to learn here about building great Web Components.