something else.. could you move or push a additional artifact to

kotlinx-serialization:kotlinx-serialization

? that would be the default location gradle looks for when adding the kotlinx repo to

pluginManagement

and resolving

id("kotlinx-serialization") version Versions.serialization

i guess thats just a concern for pre 1.3, but the same thing basically for all the gradle plugins in kotlinx (not sure if there are or how many)

You mean plugin marker for Gradle plugin portal?

yes, it can be used without pushing to the plugin partal after all