Yes, it's not working on CircleCI. CircleCI won't run x86 emulator at all, ARM tries to start but it's too slow, it also often kills it because of lot of memory usage.
Note that it needs also to have emulators preinstalled by sdkmanager.
Also that problem of blocking gradle execution is quite significant. We can use nohup or something, but support directly within Gradle would be nice.

btw. this `./gradlew listEmulators` doesn't write anything to output, do I need to add something else?