A friendly guide to four ways Kotlin reaches native power: Kotlin Native, JNI, JNA and the JDK Foreign Function and Memory API. What they are, pros and cons, where they shine and how to choose.
Pragmatic, desktop focused guide to Kotlin/Native C interop on macOS, Windows, and Linux: .def file anatomy, Gradle cinterops, type mapping, memory safety patterns, callbacks, string/encoding, platform specific linking and packaging, error handling, performance tuning, debugging, and checklists.