build.gradle.kts

    kotlin {

      // Android
      jvm {
          compilations.all {
              kotlinOptions.jvmTarget = "1.8"
          }
          withJava()
          testRuns["test"].executionTask.configure {
              useJUnitPlatform()
          }
      }
      // iOS
      iosX64()
      iosArm64()
      iosSimulatorArm64()
      // Desktop
      mingwX64()
      linuxX64()
      linuxArm64()
      macosX64()
      macosArm64()
      // Web
      js {
          browser()
          nodejs()
      }
      
  ...
}