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Amateur programmer Piotr "maniek86" Grzesik has proudly presented his homemade motherboard, dubbed the M8SBC-486. Rather than incorporating an authentic Intel 486 processor, this innovative motherboard leverages FPGA technology to emulate a '486-like' environment. This setup enables it to smoothly operate systems like Linux, MS-DOS, and FreeDOS, and also to run classic games such as Doom. Additionally, it offers partial support for certain functions of Windows 3.1. Grzesik has generously made the project open-source, sharing it on GitHub for the community to explore and build upon. The motherboard itself is compact, measuring just 150×150mm, and features a sophisticated four-layer PCB design. It comes with a PGA-168 socket that accommodates 5V-powered 486 processors, operating at a front-side bus frequency of 24MHz.
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