Hi everyone. I want to learn VueJS. But, I want to learn it while using kotlin (instead of javascript). How can I set up my hello world application?

https://github.com/nosix/vue-kotlin might be a good start

Unfortunately the interoperability of Kotlin with Javascript is not seamless like with Java. It seems like the Vue kotlin project hasn't been updated for 4 years. Getting Kotlin to work with an entire framework is probably a non-trivial undertaking. Could be very educational, but unlikely to be trivial. I think the official JS wrappers are probably you're best starting point, but right now, the supported framework is React: https://github.com/JetBrains/kotlin-wrappers