If you talk to a fintech entrepreneur about their business, chances are they’ll end up talking about ledger issues at some point. A ledger is a record of money movements that serves as the source of truth for financial assets, but when a company starts having multiple bank accounts, payment processors, and funds spread across discrete services, it can become a headache to manage. Most companies end up dedicating engineering resources to build their own ledgers to solve that. French startup Forma...