1. WizzywidWhat you see is what you deserve: a visual getting-started-tool for HTML, Custom Elements, and Polymer.
3. PolydevAutomatic web components profiling in chrome devtools
6. Uni VirtualizerMonorepo for a "universal" (renderer-agnostic) virtual scroller and renderer-specific variants
10. Brick ViewerA web component for viewing models built with a certain type of plastic brick!
23. lit-ssrExperimental SSR for lit-html and LitElement