> We're a small startup with a significant amount of time and money invested into the development of Cyph. We recognize the need for anyone to be able to review the code and verify our production build against it from a security perspective, but at the same time it would be problematic if an unrelated third party could just stand up their own instance of Cyph and directly compete with us at this stage. We would be much more inclined to fully open source Cyph at a later stage of the business.
I disagree with the philosophy of forbidding any contributions just because they are not fully open-source for commercial purposes.
This seems like a very common scenario for software that is almost "open source" except for not allowing commercial deployments. I would be surprised if there is no existing licence to cover this use case, but it will not be fully open source of course. Which again doesn't mean that all contributions need to be forbidden.