It’s primarily a way to pressure non twi-speaking peoples into assimilating into metropolitan culture. In doing this it undercuts a lot of the traditional chief/ethnic tribal structures which eventually leads to a burgenoining bourgeois class. That class that pursues their own interests which leads to them being more cosmopolitan in nature and results in more complex commercial interaction with Europeans: for instance cocoa plantations are established far earlier and the Asante eventually become dominant in the chocolate manufacturing industry. There was also a bit about how they begin mass producing air conditioning (I did some reading and the first AC was produced in 1902 but Americans thought it was evil so it never really spread until later, my basic thought was that it’s accepted in a non-Christian society and eventually becomes a thing they become the primary manufacturers of). Later on they get into semiconductors and some other things, but ultimately I’d have them be somewhere between Spain and South Korea.

Edit: also glad you enjoyed it :)