Ability to stop/start/reinstall service workers, view app manifests, validate app manifests, add apps to the desktop etc, store local results as global variable

Ability to stop/start/reinstall service workers, view app manifests, validate app manifests, add apps to the desktop etc, store local results as global variables in the console. Connect mobile devices and run a local server on the mobile device. There are more, but I can't think of them currently.