interface Deno.ListenOptions
port: number
The port to listen on.
Set to 0 to listen on any available port.
optional
hostname: string = "0.0.0.0"
A literal IP address or host name that can be resolved to an IP address.
Note about 0.0.0.0 While listening 0.0.0.0 works on all platforms,
the browsers on Windows don't work with the address 0.0.0.0.
You should show the message like server running on localhost:8080 instead of
server running on 0.0.0.0:8080 if your program supports Windows.