In case someone didn’t know, Kotlin Playground is a supported embed provider in embed.ly. As a result, we can embed Kotlin Playground code snippet on Medium directly.

There is even medium sharing button on playground

Yup! For some reason I can't find the announcement or commits for that Medium sharing feature. But anyway, thanks to people who made it happen!

Here's the announcement, there's something about medium in the comments: https://blog.jetbrains.com/kotlin/2018/04/embedding-kotlin-playground/