I've seen a couple of cli apps recently take the path of "config file is long form arguments, minus the --, separated by newlines, overridden by actual arguments", so if you were doing `dsh` (which doesn't support this) it might look like

    verbose
    show-machine-names
    remoteshell ssh
    forklimit 4

TBH, I quite like it. Less to memorize, easy to know what to override, etc.