First, you're posting this on the wrong board. You can move it yourself (bottom-left corner).
I am a product developer in the bicycle industry and I really ask myself, would it theoretically be possible to create a product or even better a full brand which works kind of open source, where people can contribute to the development process and the brand almost works by itself.
Currently, "the blockchain" is hyped and used as a buzz-word for quick money making.
My opinion: if you can do something without a blockchain, do it without blockchain! You don't need a blockchain for open source product development. For inspiration, you can for example search for open source 3D-printers.