Well the stuff I write is for #LevelUpA5e which is a fork of D&D that provides better GM support and removes racism/ablism. A key to that is separating species and culture into distinct _mechanical_ components (https://a5e.tools/rules/origin) which my books take and guide in how to do for your own Creations using a point based (relative) system.
It's not for everyone. But tell your friends? 😀 maybe they'll want it?
https://www.drivethrurpg.com/m/browser/publisher/Homebrew-and-Hacking/21080