The ability to use a JIT is not determined by the framework being used. It is a sandbox property for the process. If you use JSC in a process that cannot use a

The ability to use a JIT is not determined by the framework being used. It is a sandbox property for the process. If you use JSC in a process that cannot use a JIT it will just use the interpreter, that has always been the case. But more to the point, if you’re going to use JS (or WASM) why not just make it a webpage, that’s what the “web eats everything” means. We’ll ignore for now the whole reason the web is so great is that webpages cannot screw with your system. The fact that people keep trying to make a web page as powerful as an installed app just means every web page becomes dangerous.