Just slide your Mac Mini M4 right in — fits like it was made for it. Flip it around, pop in an M.2 SSD — up to 8TB. Takes a few seconds. Now mount it behind your monitor — screw it in, nice and secure. Slide the Mac Mini in, connect the built-in cable. Then plug in your keyboard, mouse, and HDMI. Clean desk. Monitor mounted. Mac Mini hidden. Everything works — nothing shows. That's the setup.