Resetting the clock might be worth it at this point, if we can jettison accumulated cruft and simplify, simplify, simplify. My problem with things like Haiku a

Resetting the clock might be worth it at this point, if we can jettison accumulated cruft and simplify, simplify, simplify. My problem with things like Haiku and Reactos is that they're trying to emulate systems that have already existed - Beos and Windows, respectively. All I want is a modern DOS, say with a faster/more capable graphics layer. The closest I've found is Wirth's Project Oberon, but the choice of language meant that there's very little that can be pulled from existing repositories and used directly - not too many people are programming in Oberon. C is a requirement, but you get that with the RISCV tooling.