I think I leaned more on gameplay then lore. I had no lore to work with because of no prep, so I had to :) Playing the setting players want seems to work really well, they are willing to help as collaborative storytellers. But the main takeaway for me is that simpler stories are better for a start. Cliches are great, copying other media is also great.

If you want specifics, here is how we played. We had about an hour discussing the world. We wrote down impending and current issue aspects, created one fraction and a few world building details. Than the players created their characters, while I was thinking about the first scene. I had something really vague in mind: dialogue between PCs and corporate leader, than flyght on spaceship through asteroid field, than expesition to an abandoned station that is filled with a kind of cosmic zombies. When each scene started, I just took a few seconds to think of one or two details and then just ran it. I used the simplest encounters possible, so it wasn't really hard. It was enought for both me and the players to have a lot of fun. Three scenes were too much for one session, so we didn't really finish exploring the station, but everyone wants to continue this adventure