Personally I find it kind of exciting to be able to design and build a microprocessor and a compiler for it, magically turning logic gates and silicon (or your

Personally I find it kind of exciting to be able to design and build a microprocessor and a compiler for it, magically turning logic gates and silicon (or your preferred implementation tech) into a usable system. It's also nice to be able to understand a system from the device physics level up to the user interface (and maybe beyond into networked/distributed as well as sociotechnical systems.)