The basic idea is to provide a project that builds and runs, while also showing how the various pieces can interact.
The main function of this project is
fun main() {
    // commonMain type (pure Kotlin)
    val hello = Hello()
    // jsMain type (Kotlin code that interfaces with Node)
    val someObject = KotlinClassInJsMain()
    // Use them together (JsMain type prints string from pure Kotlin to the console)
    someObject.console(hello.sayHello())
    // Call out to a node lib (axios) to query an API
    someObject.demoCallingANodeLib()
}Which can be found in src/jsMain/kotlin/App.kt
./gradlew jsNodeRunWhich produces the output
> Task :jsNodeRun
Hello, Kotlin/JS!
ZipResult for 87701 was : ZipResult(country=US, state=NM, city=LAS VEGAS)
./gradlew jsNodeRun --continuous./gradlew cleanAllTests jsNodeTestWhich produces the output
> Task :jsNodeTest
  0 passing (2ms)
HelloTest   : SUCCESS
AppTest     : SUCCESS
TEST RESULT : SUCCESS
BUILD SUCCESSFUL in 1s