Manufacturing WhitePaper/ Help

Hello,

I remember a while back that there was a white paper on manufacturing and developing a product. It was on a sister website from particle.io but I don’t seem to find it.

I am looking for help on how to take my prototype to production, including not only building the electronics (PCB, Assembly) but also doing the plastic enclosures, buttons, and packaging.

Any clues or help would be amazing!