the firefly has one torpedo launcher Bosk has materials - these materials can be bought at some stations or scavenged from derelict ships

if they encounter a hostile ship and need a weapon, he assembles a torpedo for just that purpose

materials could include... ...explosives, 10 pounds is the most will fit in a torpedo, but 5 will blow a huge hole in the hull of an unarmored ship ...short range EMP (maybe roll d6 to determine effect, whose factors include density of technology near blast point, importance of affected tech, etc.) ...timer ...impact trigger ...proximity trigger ...delayed trigger (impact THEN countdown) ...hull piercing tip+booster kit? (ineffective against armored ships)

he has an assortment of those parts - I'll give him plenty of whatever we can think of to start with when they need it, he assembles the torpedo (d20 mins? d6?), loads into a tube, notifies the bridge it's ready to launch then someone has a roll or mini game - the character who, uh, - - - actually what would someone do? Bosk programs it, all they do is hit the go button. So, he needs to have a roll that involves his explosives modifier and probably intellect.