I'm a huge fan of hard science fiction, but I don't expect there to be a lot of it. This isn't Star Trek or Mass Effect. and using too much pseudo-science will detract from the mythic feel. Expect it to be more in line with the technological fantasy that is Star Wars. Remember that to us now, a sufficiently advanced technology will appear to be magickal. I think there's a version of the uncanny valley here that needs to be respected for the sake of certain concepts, tropes and effects.