Can someone recommend me place where I can read more about Kotlin JVM compiler? Is it the same JIT compiler which is a part of JRE? I assume not because I can check out compiler codebase on Github 😛

sadly i do not know any place to read up on it, but kotlin runs on the same jvm runtime as java, all kotlin (kotlinc) does is some really involved compilation to bytecode and adding the stdlib and the like iirc the byecode magic is done via ASM, for example to make the java stdlib collections implement the kotlin interfaces