D&D In Space (But Not Spelljammer)

I put this together a while ago, and y'all might find it neat and/or interesting. The idea is to take D&D, as a whole, and set it in space. So there are wizards and clerics and elves and orcs, and also spaceships and laser guns. The end result has a very Star Wars kind of feel of fantasy with scifi dressings.

In addition to fluff, it includes rules for firearms, balanced with existing weapons, some race conversions including Thri-Kreen and Dromites, a few small character options, and a vehicle system that needs more examples.

Here's the document where it all lives: https://docs.google.com/document/d/1R7q_ZOABIATBD3aukbofH7GKl1tm-Hug063BOnR7ToY/edit?usp=sharing