Open-source designs, by definition, exist outside of capitalism, because there is no owner of private (intellectual) property who has the ability to profit off

Open-source designs, by definition, exist outside of capitalism, because there is no owner of private (intellectual) property who has the ability to profit off of those designs. Capitalists can appropriate open-source designs to make them profitable, or they can leave capitalism in order to interact with those designs. Those are the options. The project more specifically also aims to teach people that the means of production can be theirs to own (their own hands and tools, perhaps with the exception that someone likely used capitalist enterprises to make those tools and raw materials available).