Like a %5 complex intrest . you deposit to the bank and each month the amount grows by %5 , everyone will get there custom bank name account thingy called FlameBank for example or DiamondBank or it could just be Flame with a little simbol next to it or something like Flame* or Flame^ something similar to that . I think this was here before but got removed , and The interest will be complex so for example

200k deposit .. 1 month later = 210k in bank . now you have 210k in bank , 2 months later it will be 220.5k etc u know the drill

Nah, definitely nah. Will most certainly lead to inflation, which will effectively decrease the value in TC.

well maybe the interest part , but maybe a just fixed bank for everyone that requests one maybe?

you can already make a bank and use the shared bank system to make it easily accessible.