If no other strategy is detected, Dull will ask the user via interactive command-line:
Specify a URL for the initial config, or leave blank for default:
The following URL schemes are supported according to https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadfile?view=netframework-4.5.2:
HTTP with GET method
HTTPS with GET method
FTP - with RETR method
The user must press enter after they have either pasted or typed the URL that points to the config file.
The config file will be downloaded, and saved to the installation path, to be loaded when the service is started after the installation process.