Ultimately the most viable method is to lean into the CPU’s many megabytes of cache and modify a CoreBoot BIOS image to simply not initialize system RAM.

As long as you can squeeze your software into the BIOS image and available CPU cache memory, you can run amazing software like the Snake clone in the video.

This RAM shortage is getting out of hand.

I don’t like this April Fool’s joke. A bit too close to reality.

Reminds me of my first computer which had no main memory at all. It used part of the 16k video memory through a kind of interface logic. With the processor having a 16bit bus, the graphic chip having an 8bit memory, and only allowing RAM access during the cycles where it did not need the RAM for itself, the machine was way slower than it could have been.