You can find the current rule set
here. It's very much a work in progress.
Anyone who plays the hack or sends me comments about it will receive access to the special Planetary Governor playbook, which can present an alternate frame of play from the standard Space-Adventures-in-a-Big-Ship frame.
Of specific interest to other hackers designing space opera hacks may be the
ship rules, which are based around the principle of building ships like characters from playbooks.
Media that inspires the hack.