There are 4 Kotlin projects
github.com
Advent of Code Kotlin Notebook Framework
Solve Advent of Code interactively, without leaving your IDE, with Kotlin Notebook!
github.com
Pv Addon Discs
Play audio from Youtube and other sources in Minecraft using music discs. Plasmo Voice addon
plasmorp.com
Plasmo RP
A Minecraft SMP with role-playing elements and tons of custom features