Spend five minutes on webcomponents.org for a depressing ride. Broken links, broken demos, ghost town community and shuttered chat servers. Sponsored and abandoned by the Google Polymer team, or so it appears. Just sad.
Custom elements are very well documented and work in every browser. Get your server to render html with your own elements in them - your own "island architecture", no vercel necessary.
That some site promoting them is moribund doesn't change the fact they work - and are widely used.
