This is a project that has a very simple setup for SASS + TS + Lit that uses rollup.

See an online demo here on Glitch.

• Get started with Lit + SASS + TS
  • For JS see e111077/lit-sass-js-starter
• Exemplify how to setup rollup to support this config

• This does not include a production build as that may vary from project to project
• This does not support Lit 1
  • It can, but the imports will have to be changed
• This does not recommend an Lit app structure - only exemplifies the build setup

Clone the repo. Then install.

npm install

Then start the dev server and rollup watchers

npm run dev

A browser window should open and rollup will watch your files for changes.