{ config, lib, inputs, pkgs, modulesPath, ... }: { environment.persistence."/persist" = { directories = [ "/var/log" "/var/lib" ]; files = [ "/etc/machine-id" "/etc/nix/id_rsa" ]; }; fileSystems."/" = { device = "none"; fsType = "tmpfs"; }; boot.initrd.luks.devices."encrypted_boot".device = "/dev/disk/by-partlabel/boot"; fileSystems."/boot" = { device = "/dev/mapper/encrypted_boot"; fsType = "vfat"; }; fileSystems."/boot/efi" = { device = "/dev/disk/by-partlabel/efi"; fsType = "vfat"; }; boot.initrd.luks.devices."encrypted_root".device = "/dev/disk/by-partlabel/root"; fileSystems."/nix" = { device = "/dev/mapper/encrypted_root"; fsType = "btrfs"; options = [ "subvol=nix" "compress-force=zstd" "noatime" ]; }; fileSystems."/persist" = { device = "/dev/mapper/encrypted_root"; fsType = "btrfs"; neededForBoot = true; options = [ "subvol=persist" "compress-force=zstd" "noatime" ]; }; fileSystems."/home" = { device = "/dev/mapper/encrypted_root"; fsType = "btrfs"; options = [ "subvol=home" "compress-force=zstd" ]; }; swapDevices = [ ]; zramSwap.enable = true; }