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RISC-V has plenty of reference documentation and implementation code from hardware to the OS Kernel. Open source and free too.

And running on real hardware is pretty much the last thing any OS dev actually does. Using a VM with a debugger attached rather than trying to figure out how to set up a debug harness is more convienent.

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> And running on real hardware is pretty much the last thing any OS dev actually does.

This is sad.

> Using a VM with a debugger attached rather than trying to figure out how to set up a debug harness is more convienent.

But misses all the bugs which can only be reproduced by running on bare metal.

RISC-V is also proving to be big with new Chinese chip manufacturers. In terms of applicability, being able to hack the next gen of cheap IoT device processors might be pretty valuable.

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