We’ve been tracking the community’s concerns and feedback about Commons Clause fairly well. In this post, Stephen O’Grady basically writes a book on the subject and the impact of this controversial software license. …the Commons Clause turns open source software into non-open source software, according to the industry’s accepted definition of that term. Specifically it says that the terms of the original open source license notwithstanding, you may not sell software “whose value derives, entirely or substantially, from the functionality of the Software.” …there are several logical questions to explore regarding the Commons Clause. What are the drivers behind it? What does it mean for the companies that employ it and the wider industry? And lastly, is it a good idea? Set aside 20 minutes and read this if you care about how this license is becoming popular among those (Redis as of recent) who are protecting their right to generate revenue from their open source code, while removing that ability for everyone else.