Share 'Roasting Cocoa Beans'

I want to try roasting my own cocoa beans at home. I stumbled across a 1947 'Home Ec' booklet put out by General Foods (now Kraft) that gave a brief history of cocoa making in the US and talks about the fact that Baker's Chocolate for baking is just roasted and shelled cocoa beans ground up. I understand that there is quite an art to making chocolate. I have looked at options for roasting cocoa b…