we are NOT close twin

My recommendation would then be to try to make it historically accurate. You can check Appian in https://www.livius.org/sources/content/appian/appian-the-spanish-wars, where Viriathus' story covers from §60 to §75. I can help you with the distillation and writing of information if you need that. You could for example paraphrase Livy (who didn't write a lot about him) by stating somewhere "From shepherd to hunter, from hunter to bandit, from bandit to leader".

That sounds like an amazing idea, i don't know how many good atlas tutorials there are, but there are quite a few experienced mapmakers on the forums, I'm sure some of them can give you pointers.

This mod is good to be embed in alpha 0.29

This is the AI doing it.  I found that geometry is still very difficult, so the AI does not build anything yet.  But it will analyze current buildings and plan the fastest route to gather.