ok listen, it seems that almost every script of the game(even level loading) requires something called PlayFab and to remove it completely it's going to take a LONG time because (maybe) I'll have to rescript every script that depends on it so i...
A few thousand dollars likely paying developers for their time isn't cheap since they need to be able to live their own lives too
You would need to learn C since you're essentially coding the whole game and engine from scratch. Which isn't...
You should learn C. You'll need DevKitPro.
https://devkitpro.org/wiki/Getting_Started
It's really not that bad with libnds. There's some decent examples on YouTube, and it includes sample examples. It would be helpful to find a copy of Citra...