This document discusses the challenges of building successful businesses with open source code. While there are millions of open source code repositories, more than 80% of open source projects fail, and only 20% succeed to some degree. Key factors for open source code to succeed include gaining traction among consumers and developers by being easy to use and targeting specific needs. Successful open source businesses then monetize through business-to-consumer models like advertising or premium services, or business-to-business models offering consulting, support, and licensing. Examples discussed include Videolab, which monetizes its video player through advertising, and Wakanda which sells its open source framework to enterprises.