gather requirement for this API.

My assumption is that this is "launch the Desktop PWA when the system starts up" (or more accurately, a user logs in), but want confirmation. i.e. the equivalent to:

* Windows: adding a shortcut to the Startup folder
* MacOS: adding an item to Users & Groups > Login Items
* Linux/Unity: add item to Settings / Startup Applications

Or are there different use cases? Is there a difference between this and simply adding the PWA's icon to the OS-specific startup mechanism?

That mostly sounds right to me; we'd probably also want to pass flags to indicate whether the app should run as if clicked, or just in the background, with only its service worker running.

The other main use case is to ensure that Chrome is running at Startup so notifications etc. can work. This doesn't require the apps to be running in the foreground.

can you start a doc and gather the required usecases there? Once we get these, we can fan out the work.