I ended all preparation. I just need to build the mod now and test it, should be quick.

For History, about "Shasho Method" :

https://www.games2gether.com/amplitude-studios/humankind/forums/178-modding/threads/46723-tutorial-how-to-remove-district-cost-scaling-from-extractors?page=1#post-345178

SPOILER:

Well, Spoiler if you understand something, but we all know any HK player is high IQ with mostly Doctorant diploma.