Think about it in terms of the misv (https://en.wikipedia.org/wiki/Micro_ISV https://en.wikipedia.org/wiki/Micro_ISV) business model instead of more mass market

Think about it in terms of the misv (https://en.wikipedia.org/wiki/Micro_ISV https://en.wikipedia.org/wiki/Micro_ISV) business model instead of more mass market stuff. Your customers are paying you to install it, upgrade it, create backups, etc. They have no idea what to do with the source code and even if someone creates a setup wizard they have no idea how to setup all the other stuff they need. OSS provides a way for them to pool the development cost, customers and business avoid the bus factor and customers potentially get competition. Customers pay to have problems solved. Of course these days this business model is being overtaken by SaaS and the bus takes out the developer and their data.