Imagine that financial services could be built like Lego blocks — that developers could easily combine different pieces to discover hundreds of new use cases. That's the transformative potential of the open source movement on banking, according to a16z fintech general partner Angela Strange. In this video and accompanying op-ed (https://future.a16z.com/open-source-f..., she unpacks how open source has the potential to modernize payment infrastructure, expand connectivity beyond traditional banks, combat financial crime, and increase accessibility for three billion underbanked people worldwide.