If I had a a kotlin library running in an AppleTV app, how would I debug the Kotlin code? The KMM plugin makes this easy for an iOS app, but I haven’t found any way to do this on apple tv yet.

I’m not sure this option is supported by the KMM plugin. Please consider filing a feature request at the kotl.in/issue.

I filed this a few days ago - https://youtrack.jetbrains.com/issue/KT-44255