Spitballing Idea:
This idea is stolen from Coriolis and Blades in the Dark… part of character creation should include a selection of a Group Role – like a Career, but for the group as a whole, and should have moves/skills that apply to all members of the crew.
For example: Merchants / Smugglers / Explorers / Military
Merchants would have 3-4 skills based on trading, Smugglers would have 3-4 skills based on stealth or crime, etc
Each Group Role could also have rules for creating the setting specific to that role. Maybe the four listed above include special rules for starship creation, while others might include planet or city creation.
I think something like this would address two of my concerns in the base system:
1. Group cohesion isn’t built in in the manner that Bonds/Debts/Hx from other PbtA games do it. Adding mechanics to your group as a whole could encourage that cohesion more.
2. Setting creation is a bit TOO open to me, so allowing the players to flag what they want (explorers and smugglers fit into very different settings) helps with knowing where the setting should be pointed to.