While there are many features within this homebrew that refer to Classes and Subclasses, everything within this homebrew stems from a simple Species option. This was designed to be as compatible with other rulesets as possible with a single point of connection to other rulesets. That being said, while everything here is established as part of a central Racial/Species Option, this specific page is dedicated to options for Backgrounds.
New Light: Your freshness in your Risen life grants you a particular clarity. Choose one skill. If you roll a 1 on checks in that skill, you can re-roll the check. You may change the chosen skill at the end of a long rest.
Reformed Warlord/Raider: You have advantage on Intimidation checks, as the only Warlords that were not fearsome ultimately faced their final death. Additionally, if you roll a 1 on a Survival or Athletics check, you can re-roll the check.
Researcher/House Scribe: You can retain and recall information you have learned within the past month. Additionally, If you roll a 1 on an Arcana or History check, you can re-roll the check.
Freighter: You have proficiency with Vehicles. When you pilot a vehicle with multiple platforms, when an allied creature makes an attach with the vehicle's weapons platform, they can add +1 to the attack roll. Additionally, your familiarity with Zero-G environments allows you to adapt to quick movement. if you roll a 1 on an Acrobatics check, you can re-roll the check.
Spartan: From a different time, a different war, an angelic place. Some would have picked you, but let you have your deserved rest... Until desperate times called for desperate measures. You gain four additional Ability Score points, which you can allocate to a maximum of +2 per skill.