{modulesPath, ...}: { imports = [(modulesPath + "/profiles/qemu-guest.nix")]; boot.loader.grub.device = "/dev/vda"; boot.initrd.availableKernelModules = ["ata_piix" "uhci_hcd" "xen_blkfront" "vmw_pvscsi"]; boot.initrd.kernelModules = ["nvme" "btrfs"]; fileSystems = { "/" = { device = "/dev/vda3"; fsType = "btrfs"; options = ["subvol=nixos-root"]; }; "/nix" = { device = "/dev/vda3"; fsType = "btrfs"; options = ["subvol=nix"]; }; }; }