Scoped registry and MWC components

[JakobVogelsang]

Hi all, I am working on an application with a plugin architecture based on the idea of web components. In addition to that we are using mwc components in each of the plugins. We would like to make sure that there are no conflicts with custom tag names and be sure that each plugin is loading the version of the same component we wanted to make use of the custom registry - at the moment still a polyfill, unfortunately.

So far I have see that there are multiple components loading other components like so

import './../some-component.js'

... 

render() {
 return html`...<some-component ...`
}

which means somehow customElements.define is called and the tag some-component is registered globally.

Does this mean this component library is not designed to be scopable? If so can you recommend a component library with utilizing material design guidlines?