demo app skeleton using
start java application:
./mvnw spring-boot:runnpm run build- build dev bundle of stylesheets (not minified and not purged)
 
npm run dev- start watching files and compile it on change
 
Note that the npm tasks are building development bundles by default.
If you want to have optimized bundles you can set the NODE_ENV environment like NODE_ENV=production npm run build.
(which the maven build does by default)