Intrepid modder builds an M4-powered 4K iMac G3 with 3D-printed parts — guts 90s all-in-one and replaces internals with a Mac mini and an OLED screen by editors@tomshardware.com (Jowi Morales) from Latest from Tom's Hardware on 2025-12-05 11:00 (#71YSS) YouTuber Zac Builds used an M4 Mac mini to upgrade an old iMac G3 into a modern all-in-one computer.
