I hope I am not asking for too much. But to be fair I did try to understand cashu.

But can you explain me cashu like I am 10 year old or point to the right explanation.

Because this explanation I did not get:

Cashu is an Ecash implementation based on David Wagner's variant of Chaumian blinding (protocol specs). Token logic based on minicash (description) which implements a Blind Diffie-Hellman Key Exchange scheme written down here. The database mechanics