I mean, plenty of people use higher end coding languages to customize the tools they use to make advanced chipsets.

And, I'm sorry, but JavaScript isn't that hard to understand - intentionally so. It's one of the first languages you can learn in grade school.

I doubt anyone could go end-to-end on hardware manufacturing. But that's more an issue of parts miniaturization. People build working computer kernels in Minecraft using torches and switches.