A lot of cargo is shipped around the Strange Stars. While multi-purpose freighter/transport ships care smaller and specialized cargo, specialized container craft handle the bulk of interplanetary trade, making the routine system and hyperspace runs. These craft are called haulers.
Haulers are stripped down vessels designed to carry standardized shipping containers. They're basically a bridge, a slender body for the attachment of containers and engines. Haulers have minimal crews; often just one pilot and a low sentient support ai. Shorter runs may be completely automated.
Perhaps due to the extended periods of isolation, hauler pilots are an eccentric lot, even compared to other spacers. Most haulers have simple sim equipment, and many pilots engage in a thriving trade in low res bootleg sims. Haulers use special data protocols to stay in contact with each other over their official communication channels. Underground hauler chatter is a good source of information about special custom checks or gossip on other hyperspace travelers, if one has a good translation program for their argot.