Concerning the VF2 CPU frequency issue on the "upstream" branch: a Starfive employee has responded to say that it'll be fixed once the JH7110 PLL patchset is accepted upstream.

If anyone doesn't want to wait for the vendor's fix, the issue is that the PLL0 clock runs at 1GHz instead of 1.5GHz. I'd write a patch for it myself, but I can't figure out what change needs to be made, so good luck to anyone willing to try. If you do find a fix, please share it in the GitHub issue.

https://github.com/starfive-tech/VisionFive2/issues/55#issuecomment-1631996288

In reply to @alex:tunstall.xyz

This should work. https://github.com/AlexandreTunstall/nixos-vf2/releases/tag/broken-v1

If needed, I can spend extra time to build a disk image instead.

I see the extracted .nar file but don't know how to import it... I get the following error:

$ nix-store --import ./new-nix.nar
error: no arguments expected
Try 'nix-store --help' for more information.

nix-store --import < ./new-nix.nar

(This command is also in man nix-store)