[@ZAVAZggg] Regarding the dwarf star, yeah it just was happanstance, an unfortunate 180 in life. 

As for technology, yes there are some limits. For example of course, FTL-capable ships haven't been developed, Jump Gates being the primary means of traveling between star systems. Nothing else comes to mind for now, but I'll let you guys know when something isn't kosher to the setting.

Also to note to explain why Jump Gates are a thing now despite alien civilizations being established, they were all too primitive to leave beyond their homeworlds or systmes before the humans arrived.

Edit: And yes, proper aliens :D