"Typically, legacy software has been around for decades and was built on IBM mainframes using Kobol, your hard disk space and RAM was very scarce," he said. Silverflow relies on AWS and modern database systems which, he said, are easier to work with, faster to set up, and can store more data.

https://www.businessinsider.com/silverflow-raises-17-million-led-by-coatue-modernize-payment-tech-2021-12