These generalist communities are definitely the way to go for the time being. I think that if someone has a retroconsole or emulation setup, then the patientgamers community would appreciate it because we're just, simply, lacking content right now. Like, Beehaw's gaming community, meant for literally everything gaming, is currently the largest and even that has a lack of threads.
If the place grows, then that's when we splinter things off.