Both Action and Scripts are file they would need to be install into users Photoshop installs. Action sets *.ATN file need to be loaded into users ID Preferences Actions Palette and all users would need to load the actions sets into their actions palette. Photoshop scripts need to be copied into each Photoshop version used presets\scripts\ folder. All users the use the install would have access to the scripts. So if you put your Photoshop Add ons into the cloud users would need to be able to access them and be able to install them into the photoshop install they are using.