Similarly I'm looking into the nano kvm now the firmware is open https://github.com/sipeed/NanoKVM
Disappointing, I had read on a blog somewhere recently that they had released the firmware and didn't look into it deeply enough
> the backend will be open-sourced soon (after the GitHub repository reaches 2K stars).
https://en.wiki.sipeed.com/hardware/en/kvm/NanoKVM/system/in...