Are authors interested in a factory method to construct commands or options from a hash of the properties? This would be an alternative approach rather than a replacement for the current chaining interface. The use case is adding options and commands from meta information supplied from elsewhere.

e.g.

const my = readOption();
const myOption = Option.fromHash({ flags: my.flags, description: my.description, mandatory: my.mandatory, hidden: my.hidden });
program.addOption(myOption)