Kotlin multiplatform is a great way to share new and existing Kotlin code with other platforms. But what about non-Kotlin code? Turns out Kotlin multiplatform can also be a great way to share code from other languages such as Swift, Rust, Zig, C, and more. This talk will show how to adapt code from these other languages into KMP, the restrictions and considerations when doing so, and look at some existing libraries which are doing this today.