{ config, pkgs, ... }: let defaultBtrfsOpts = [ "noatime" "space_cache" ]; in { fileSystems."/" = { device = "/dev/disk/by-uuid/7831f8ee-0ad6-49c2-8288-6f5e61ae0a08"; fsType = "btrfs"; options = [ "subvol=/nix" ] ++ defaultBtrfsOpts; }; fileSystems."/btrfs" = { device = "/dev/disk/by-uuid/7831f8ee-0ad6-49c2-8288-6f5e61ae0a08"; fsType = "btrfs"; options = [ "subvol=/" ] ++ defaultBtrfsOpts; }; fileSystems."/boot/EFI" = { device = "/dev/disk/by-uuid/DBE9-10B4"; fsType = "vfat"; }; fileSystems."/mnt/data1" = { device = "/dev/disk/by-uuid/0ab799ad-c5cf-4a5d-b5cc-7891115eb5e4"; fsType = "btrfs"; options = [ "subvol=/" ] ++ defaultBtrfsOpts; }; fileSystems."/mnt/data2" = { device = "/dev/mapper/VG_HDD2-Data0"; fsType = "ext4"; }; fileSystems."/mnt/data3" = { device = "/dev/mapper/VG_0-LV_Data0"; fsType = "ext4"; }; swapDevices = [ ]; }