Kotlin is a super new programming language built by JetBrains, which also coincidentally develops the JetBrains IDE that Android Studio — Google’s official developer tool — is based on.

Kotlin is a hot programming language right now, and its eclipse of Java for Android mobile development might leave Visual Studio developers wondering how they can get in on the action.

Kotlin offers big advantages over Java for JVM and Android development, and plays nicely with Java in the same projects.

Here's what Meta's developers have learned from moving their code base from the Java programming language over to Kotlin.