Host info about the Expo server would be nice to have available. I'm especially interested in obtaining the exp:// URI of the current app, when it's being served.

Use case: I host a Web API on the same dev machine, and would like to be able to grab the exp:// URI, pull out the IP, then use it to communicate with that API, rather than having to specify it in config (where it frequently changes due to dynamic assignment, or multiple devices connecting via different access points).

Also, the current app's package name (falling back to the expo package name) should be accessible.

Use case: to support preparing a package:<package name> data URI for use when this issue is reopened and resolved: