To kick off MARCHintosh, I built this tiny pint-sized Macintosh with a Raspberry Pi Pico: This is not my own doing—I just assembled the parts to run Matt Evans' Pico Micro Mac firmware on a Raspberry Pi Pico (with an RP2040). The version I built outputs to a 640x480 VGA display at 60 Hz, and allows you to plug in a USB keyboard and mouse. Since the original Pico's RAM is fairly constrained, you get a maximum of 208 KB of RAM with this setup—which is 63% more RAM than you got on the original '128K' Macintosh!