Matt Shumer one-shotted a fully working computer from scratch with JavaScript and Opus 5.5. Not a mockup — 277k simulated logic gates, an OS on top, and games on the OS.

Matt Shumer successfully created a fully functional computer from scratch using JavaScript and Opus 5.5. This was not a mockup, but a system with 277,000 simulated logic gates, a complete operating system, and playable games running on it. The project involved designing the CPU, memory, an assembler, and a tiny OS, all visualized in 3D, demonstrating the capability to invent computing from the ground up.

Unlike typical simulations, this project uniquely demonstrates a complete computer built from 277,000 simulated logic gates, including an OS and games, rather than just a high-level abstraction.