Flow Credit Currency

I had recently found out about an idea called flow credit university, from the book Common Planet. From what I read, it seems familiar as to how currency would play out under parecon.
Do y’all have any thoughts on this?

I couldn’t access the PDF document for some reason.

My thoughts on how a currency could be created right now (why not create that parallel society?) are the following…

Develop an electronic platform to account for the transactions, something like a distributed ledger system, they type used by cryptocurrencies.
Agree amongst participants that each will charge the same labour to produce their goods/services.
Start producing goods/services and offer these for sale.
Exchange currency for such goods/services.

It would basically be an underground or black market economy free from government controls and taxes.