Internal currency and referral links in modx?

Question

MODX

There is an interesting task to make an Internet project with internal currency and referral links. I want to do everything ModX R.
What is all this for? The user registers in the system, receives a ref. the link and it leads the client, for which he is charged with the internal currency of the project, which he can exchange inside the resource for rubles. You can do without the internal currency, replacing it with alternative options.
It is interesting to hear your opinion and possible solutions, as well as to find like-minded people.

Answer 1

modstore.pro/packages/users/msprofile
is probably what you need, but it works in conjunction with minishop2