Server URL Autocomplete.

It's become apparent that my users when connecting their mobile devices to there Nextcloud account don't like typing the full URL (https://apps.example.com/nextcloud/) of the server address so I'm proposing is a "server auto-complete" feature. My idea is that the user only needs to enter the top-level domain (example.com) and when the app fails to connect to the server at that address it then makes another request to something like "https://example.com/NextcloudServers.xml" (Or for Federated Cloud improvement just "Servers.xml" so sharing resources to users becomes user@example.com instead of the full server address when sharing) which contains something along the lines of:
<server> <friendlyName>Example Server 1</friendlyName> <URL>https://apps.example.com/nextcloud/</URL> </server> <server> <friendlyName>Example Server 2</friendlyName> <URL>https://moreapps.example.com/another_nextcloud/</URL> </server>
Which then if there are multiple servers defined the app will then show a list of available servers then upon user request will fill out the URL field making the login process more intuitive.

No file, test, or entry point is named. Start by locating the iOS app's server URL and login flow, then review the proposed XML discovery request and response format. Done would require an agreed discovery mechanism, support for multiple servers, and filling the URL field from the selected server.