Building your own hardware to build your own assembler to create your compiler to build your own OS to allow you to build your own CAD system to create your own board layout and test tools to build your own processor to create an assembler to...
You mean like Chuck Moore, the Chuck Norris of computing?
You may have it backwards: Chuck Moore doesn't compute. He tells electrons where to go, and they take orders. Inside every computer built by Chuck Moore, there is only another computer built by Chuck Moore. Chuck Moore once built a zero-instruction chip that always produced the correct answer. According to a doctor that wished to remain anonymous, Chuck Moore has only two internal organs: a whiskey processing unit, and a NAND gate. Chuck Moore once traveled back in time just to convince Alan Turing that his computer didn't need any I/O devices besides a tape reader.
SCNR
Building your own hardware to build your own assembler to create your compiler to build your own OS to allow you to build your own CAD system to create your own board layout and test tools to build your own processor to create an assembler to...
There's always room for a higher-order yak.