this I found on the wiki and I edited it a bit!

Like when you make russia communist, it becomes USSR. You can do it from the existing nations but not for custom ones.

I think everyone has come across the fact that your leader will always rule your country during the game, regardless of ideology and time.My question is how to replace the ruler with the help of events or something else during the game?

Hello everyone, I put this publication more than anything so that you know that if you want me to make a personalized flag for a personalized civilization I will do it without any problem and obviously for free, it's just that, thanks for reading

How to add a new language or custom language on AoC2.
1. you need to copy bundles.properties and paste it on other folder
2. Go to inside the bundles.properties file that you copied and translate it with your language
3. add your language tag on your language file name, it should be like this: bundles_yourtaghere.properties
3. if you done it, paste it on game/languages
4. to add flag, you need to go to inside age_of_civilizations file, the file should be inside game/languages folder
5. and then add your language tag and your flag tag, to find the flags tag, you need to go to game/flagsH and you will find your flag tag and your flag that you want to add. Then, it should be like this: ;yourlanguagetag;yourflagtag;
6. Save it and done 👍
If you still don't understand, you can go to my YouTube Channel i will upload the video soon.