I do not want this to always be a mod that only affects faiths made by the player or faiths added by mods that have this as a dependency. I want all the faiths of ZAWORLDO to have doctrines that accurately reflect what the beliefs of those religions were.

I'm also aware that there may be cases where religion says something should be done a certain way but in practice things were done a different way, such as due to culture or overwhelming practicality.

Problem: Not a historian and don't have the time to research all the cultures and religions of the CK3 start dates. If you are aware of a way things were done in a certain religion, culture, place, within a certain ruling family or whatever else at the time of the CK3 start dates, let me know.
I can make traditions, dynasty perks and if I pull out some elbow grease probably a lot more to get things down accurately, but need to know where to actually apply these skills. I can also increase the amount of doctrine options.

Inheritance is a huge part of CK3, so adding to historical accuracy or just variety with regards to it in particular is something that can do a lot for making places more unique in a way the player is more likely to notice.