the custom URL scheme you'd like to use for your app. This lets your app respond to links like myapp://blah
the scheme to use for universal/app links. Defaults to 'https' in 1.0.13. 99% of the time you'll use https here as iOS and Android require SSL for app links domains.
the host that will respond to deeplinks. For example, if we want example.com/product/cool-beans to open in our app, we'd use example.com here.
(optional): specify which path prefix our Android app should open from more info
e.g. send?message=Hello
(optional): e.g. /path/to/page