Enthusiast builds a fully functional CPU from old memory chips — hand-solders every wire, writes 1800 lines of assembler code, and makes it play The Matrix on a VFD display

Someone just built a fully functional CPU from scratch using old memory chips and logic parts from the 8-bit era. Spanning four perfboards and over a kilometer of wire, it runs real code, handles interrupts, and even plays The Matrix-all using logic simulated entirely through EPROMs.