Not all hardware is designing digital integrated logic. Manufacturing medium-complexity PCB boards (6+ layers, BGAs, etc.) is within hobbyist budgets (and cert

Not all hardware is designing digital integrated logic. Manufacturing medium-complexity PCB boards (6+ layers, BGAs, etc.) is within hobbyist budgets (and certainly Kickstarters, thrifty startups, etc.) but the open and low-end design tools are not up to to the task. For example, I'm not aware of an open design with Eagle or free tools that has a fast, modern DRAM interface. Professional tools are extremely expensive (10-100K), but certainly not more complex than, say, a modern C++ compiler like gcc or LLVM/clang.