It's a small fraction of the overall list. I only included those things which might be of interest to a hobbyist/startup designing and manufacturing electronic

It's a small fraction of the overall list. I only included those things which might be of interest to a hobbyist/startup designing and manufacturing electronics for consumer use. The point here is that the list is far-reaching and all-inclusive. If you're looking to start a business making hardware, there is almost nothing that you'd use in the design, prototyping, or manufacture of your device that _isn't_ on this list.