[StrangeDoctor]

I think the idea is:

some computing device is discovered, but the OS is bad/missing/old/not useful etc. Or possibly a novel computer is built from whatever is still around.

The computer itself would still be good if only it had an os.

Dusk OS is easy to port to new arch because it compiles from source on every(?) boot, and only needs a tiny kernel to be ported?

[vdupras]

Yes, every time Dusk boots, it boots from a kernel ranging from 2.5 to 4 kilobytes in size, depending on the CPU. The rest is all compiled (very quickly) from source on the fly.