lit-html has been used in production for over 2 years now, on sites with billions of page views a day. At this point no one new to it would be an early adopter :)

The issue with module loading is a pretty fundamental one, though pretty unrelated to web components.

Once you understand it, there are a large number of tools that make them work. The core problem is that most modules available on npm are written with import specifiers that assume the environment supports Node's module name result. Browsers don't, so it won't load something like `import * as redux from 'redux';`

The solution is a tool that transforms package names into URLs. Webpack, Rollup, Parcel, es-dev-server, Snowpack, Vite, unpkg.com, Polymer CLI, and many more do this for you.

More and more of the ecosystem is moving to native modules and we're all going to have to understand this issue.