At that point you're effectively creating your own VM, and then you may ask why doesn't someone simply use the JVM or the CLR. Once you reach that degree of com

At that point you're effectively creating your own VM, and then you may ask why doesn't someone simply use the JVM or the CLR. Once you reach that degree of complexity, there are simply too many tradeoffs. I certainly won't stop you from trying to develop such a thing, could be a nice way to get languages bootstrapped faster. Just keep in mind JIT compilation is forbidden in iOS, so e.g. C# needs an entirely different compilation strategy for that platform.