Immediately after switching the page, it will work with CSR.
Please reload your browser to see how it works.
Fortunately for the commons, what's done is done.
Including RISC-V, and ready to use images for many boards such as VisionFive 2.
For the actual hardware or PCem, FreeDOS exists and is alive. DR-DOS has also been open sourced.
To the point I might have dreamed it. Odd.