A couple comments....this is super interesting to me. It boots into Linux from an HDD image. It also requires and uses Unreal Memory Mode [0][1] (vs. Real Mode or Protected Mode). It makes me wonder how compatible & stable this is with other DOS era software.

[0] https://en.m.wikipedia.org/wiki/Unreal_mode

[1] https://github.com/charliesome/doslinux/blob/master/doslinux...