In reply to @ibizaman:matrix.org
Any tool should be compatible. I used nixos-anywhere successfully and heard about nixos-infect working too. I’ve got a flake template for the former https://github.com/ibizaman/skarabox if you want some inspiration.

In reply to@ibizaman:matrix.org
There are two errors at the end there, setting root filesystem and grub stuff. Usually those come from running the hardware generator on the new machine and that gets you a hardware-configuration.nix file. You must include that file or recreate the options it is setting for the configuration to be happy.