Unpack this zip and place the application it contains into /Applications and run it. It runs as a menu bar application.

When it is first run, it will build a couple of components and it's Xcode plugin after which you should restart Xcode.

Thereafter, when you want to modify an implementation in a running application use the "Product/Juice Plugin/Inject Source" menu item in Xcode or type "ctrl-=". If you turn on the "File Watcher" in the "Parameters" window (accessible from the drop down menu) once you have injected and juice is loaded, you need only save a file to inject.

You may wish to patch your project's main.m to have Juice permanently loaded (for Swift projects you will need to add a dummy main.m to do this) You also will need to do this if: