Use flowOn to make multiplexing actually parallel.

.bazelignore

@@ -7,3 +7,4 @@ examples/jetpack_compose
 examples/node
 examples/trivial
 examples/anvil
+examples/multiplex

examples/multiplex/.bazelrc

@@ -0,0 +1,4 @@
+build --worker_verbose
+build --worker_max_instances=1
+build --worker_quit_after_build
+build --profile=/tmp/profile.gz

examples/multiplex/.bazelversion

@@ -0,0 +1 @@
+4.0.0

examples/multiplex/WORKSPACE

@@ -0,0 +1,12 @@
+workspace(name = "multiplex")
+
+local_repository(
+    name = "io_bazel_rules_kotlin",
+    path = "../../bazel-bin/rules_kotlin_release.tgz",
+)
+
+load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kotlin_repositories", "kt_register_toolchains")
+
+kotlin_repositories()
+
+kt_register_toolchains()

examples/multiplex/src/BUILD.bazel

@@ -0,0 +1,26 @@
+load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kt_jvm_library")
+
+kt_jvm_library(
+    name = "big",
+    srcs = ["Big.kt"],
+)
+
+kt_jvm_library(
+    name = "small",
+    srcs = ["Small.kt"],
+)
+
+kt_jvm_library(
+    name = "small2",
+    srcs = ["Small2.kt"],
+)
+
+kt_jvm_library(
+    name = "small3",
+    srcs = ["Small3.kt"],
+)
+
+kt_jvm_library(
+    name = "small4",
+    srcs = ["Small4.kt"],
+)