Use [`get-port`](https://npmjs.com/package/get-port) if no port given. https://github.com/derhuerst/fasp-server-cli/blob/704d6cef53c9d71050fb5eeb1373060b92968328/cli.js#L54
Use
get-portif no port given.fasp-server-cli/cli.js
Line 54 in 704d6ce