Sounds mostly fine, but do consider a 'common start date' in comparison with the rest of the galaxy, because it can effect everything from what kind of technology a civilization has, usually the human calendar with a petty start date like 2200 or 2300s is pretty typical to allow for super human advancement but also be low-tech sci-fi.

We can discuss more of this kind of lore in detail in your discord, but having a good grasp of what you build in your lore can mean the difference between a story based rp or a simulator.

also edit note: If we do have low-level psionics, then I would recommend building up a codex to explain it or give some general rules, because in my experience in lore building, having just a low level vague psionic allowance typically just invites very extreme ideas on how it is run.